Submission #958469

# Submission time Handle Problem Language Result Execution time Memory
958469 2024-04-05T20:39:10 Z shmax Chessboard (IZhO18_chessboard) C++17
100 / 100
373 ms 5980 KB
/*


         ~??:   :!?J???????????????! .????????~  !?!~?^~!:7:?!~7?. .????????^                                   .:^^^^^:...............::................::::::............:.. ....
         .YYY:    .^7JYYYYYYYYYY?!:  ~YYYYYYYYJ??: :J7^Y?~Y!~J! .7?JYYYYYYYYJ                                .::^^^~~^.................::^~~^:::...........:::^^^^:::::.......... ..:.
         .YYYJ.   ..  .::^^^^:..     .7JJYYJYYYYY7~?^ .?. !! .?!!JYYYYYYYYY?~                             .:^:::^^~~..................^~7!^:.................:::::^^::.............  ..:.
.:.      ~YYYY~  ~77:     .~~~:.       :7JYY?~^^JYYYJ?JJ!!?J??YYYY!^~!!~^:.                            .:::::^^~~!~::::^:::..........:!^................::^::::::::::::........   ....  ..:.
YYJ!.  .!YYJJY?   ..   ...?YYYYY!.   .!JYYJY?. .JYYJYYYYYYYYYYJJYY:                                 .:::::^^^~^^^^^^^^:...........:~~~:...::::..........:^!??7~^:.............  .   ....   ..:..
YYYYY??JYYYYYY?.......JYJYYYYYYYY?...7YYYYJJYYJYYYYJJJJYYYYYJJYYY!................................^^^:::^^^^^^^^^^::..............::...::........::......:::^~7?7~..............  ........    .^^:...................................................................................................
JJJJYYYYJJYJYY!......:YYYYJJJJJYYY^.:YYYYJYYYYYYY~7YYYYYJ?JYYYYJ~...............................^~~^^^^:::^^^^^^......^^^:...............::::.....::::::::^^::.:^7?~.............   ....::.  .  .^~:....................................................................................................
YYYYYYYYYYYYY7........!YYYYYYYJJYY~.^YYJJJYYYYYY!..:~7~:..:~7!^...   ........................:!7!~^^::::^^^^^^.....^!!^....................:~^::....:::^^^^^:::...:!?^.......  ..... .::.::.. ..  .:^:....................................................................................................
^:~JY!:~^.~?~..........:!?JYYYYYYY^.:YYYYYYYY?!:.................     .....................:!7!!^^::::^^^^~~.. .:!J?^.............:........::^~^:..::::::::^^:......:!!:.....    ..^^. :~.:^:. ...  .^^:...................................................................................................
   .^       ..............:^~!7?J?:..?J?7!~^:................     ...     ...............^!!~!~^:::::^^^~!^.  .!YJ~......::.......:.....:::::::^^:...::....::^::......^7~.        ..^!: .!::^:......  .^^:..................................................................................................
        :   .     .^!7????7~^:...........:^~7?????~.........    .    .:    ........... :77!!7~^^^:::^^~!7^.. .JP7....:.:^:.......::.....:::::::::~::.........:^:........~!.         .:7!:.7^:^^...::.   :~^:................................................................................................
      .:.. .      !YYYYYYYYYYYJ?^.....:?JJYYYYYY7:.   ..     .  ..  ..  ..............~7777?~^^^^^^^^!77^...:?5~......:^:........::......:::::..:^!::..........:^:.......^7:       ....!J~:?~:^^...:^..  .^^:...............................................................................................
   ::.     .::    :YYYYYJJYYJYY7..:^:..7YYJYYYJY?   .. ...   .      ..  ............:777777~~~^^^^^~7??~...:?J:......:^:.........^..............::^7::..........:^:.......:7^     ......^?77J!^~~:..:~...  ^~^:.............................................................................................
    :       .    ..!YYJYJYJYYJ~..!JYJ!:.~JYYYJYJ?~...    :  ...   ..    ...........~?7?7!7~~~~~~^^~7??7...:JJ.::.....^!..........~...............~.~!.:...........:^....   .7~    .......^??7J7~!!...~~...  ^~^:............................................................................................
     :.   .:.   ...?YYYYYYYJ!:.^JYYYYYJ~.:!JYY7.  .:.    .:    .....:..^77~~.....:!77J7!?~~!^~~^^!??J?:...JJ:^!......~~..........~:..............!:.?^.:...........:^.     ..!~   ........^??7?77?!..:7~...  :~^:...........................................................................................
     :..   .     ..^!7???!^:..!YYYYJYYYY7..:^77.    ......     ...:!JJ7JYYYY:...:77?J!!?~~!~^!~^~????!...JY:~7!:..:..!~..........^~............. ~~ :Y............. .:. ......!~  .........^??77777~..!?^.....:~^:..........................................................................................
                 ............~YYYYYJYYYYY~......   .  ..  .. .....~JYYY!!7?YJ?!^77JJ!!J!^!7~!!^~?????:..75^^777:.^..^!~.........::7............. ^J. 77.......    .. .:.::.....7: ..........!7777!!7^.~?7:......~^:.........................................................................................
       ....   ...............!YJYJYYYJJYY7..........      .........!JJ7:.:?YYYJ77JY!!J?^~7!~!~~?????7:.^P!^7!7?..~..!!!....::...^.!^.............:5: .5:.....     .....:^^^....:7. .........:!77!!!!7::?7~..:.:..~::........................................................................................
   ...............:^:...:^^...?YYYYJJYYY?:........................~JYYY??JJY!77?5Y!!?J~^~777!~7J????!~.5?^77777.^~.:7!!^...^....~:.7.........:....5~. ?Y..:.............^~!^....:! ..........^7!!~!!!~:7~!:.:::: .~^:.......................................................................................
  .~~:^7~......:~!YYYJ!?YYY7~:.^7!:.:~7^...........................^77~!YYJJ7~?P5!!?Y7^^~7?7~!J?77777^75~!777?7.7~.^7!!!:::!....^~.^!:......:~....P?..:P~.:7^.....:..:...~!?~^...~^ ..........~~~~^~!!^!^~^..^~!. :~::......................................................................................
 :YYYYYYYJ:... !YYJ?!~7!~?JYY7........:.........::.........   .    .....:~:~~?P5!!75J^^~~7?7!?J777777^P?!77!!?7:?^.^7!!!~^~7..^.:^^:!7:.....^!:..:GJ:..JY:.!Y^...:^^::~...!??~^...7.........:.:!^~~.^77!^:!..^!7:  :^::.....................................................................................
:?Y7!??!7YJ777!~JJ^~!~~~!!^?Y~.....::!YY?~....~?YY7::......  .  .  .......^~?P5!!!Y5!^^~!7?77Y?77777!?P777!!777^J^.~7!!!~~7?..7:.^:!^!~.....!7:..~GY:..~G!:.JY:...~!!7~~..:???7~..^7 ^.......:.!~^~~.:77^.!:.^7?~   ^^:.....................................................................................
J77~^7!~~!~7YYYYY~!7^. .^7!^JYJ^..:YYY!~~.~..~.~~!YYY^...   .   ..   ....:~75Y!~~75J^^^~~7?7YY777777!5Y?7!!!77?!J~.~7!!!~~7?^:?~.::.?~~.....!?^..7GY~::.PJ!^:5J:..^7!7J7^..~J??7!..!::!..:...:.^7^^!^.:!!:^^.!J?!    ^^:....................................................................................
!:7!~^^^!7~^JYJYY?^!!^:^!!^?YYJ^...77:::!77?7777:::!?....   . ...    ....~!57!~~!Y5~^^~~~??75?777!77!5J?!!!!7!??J~.~7!!!!!!?7~??:.~.~J~^...:77~..JGY!^~.?B!?^!P?:.:7!~??~..:?J7777::7.7!:.~...:.?~^^!:.:7~:^:77?7.  . :::...................................................................................
:!7~:  .^~7^^JYYYY?7~~7~~77JYY!......:!?77~^^~77?7:..........    .......~~Y~~~^^7P?^^^~~~?7J5!~!!!7!75?77!!!7!7JJ~.~?!!!!!7YJ77?!.^:^7?~^:.:77!:.PGY7^J.:PY~?^YY7^:^!!!Y7^.:~5?7777:!::7!^!7^.~:^?~~!!..~7::!?~!7.  .  ^^:..................................................................................
!~7!~:::~!!^JY7:::^YJJYJJY~:::...:^..!?7!:    .!7?7:.^:................^^J~:~^^^?5~^^~~~~?75Y~~!!!7~?J777!!7777??~.!Y~!!!!75Y7777^.^~!~~7^:~777~!BPJ?^P:.7Y7!7~G?!~~!!~~Y!::^?P!?!!7!!.!~!7??77!:77:^7^..7!~7!.^7:  :...^^:.................................................................................
J^~!!!!!~~!~JYJ. ..~J?!7?^.::..:7YJ.:7?7!.    .!7??:.JY?:.............:^!!:~^^^~YJ^^^~~~~?7P?~~!!!7~J?777!!7777??~.!G!~!!!75Y!!7J7::7!!:!!!!!!!!PP5J?^B!.!!J!!!?G!~~~::.~Y~:~~55!?~!7J.~~~~~!7J?:!?!.^7^.:7!7::~7^. ~:.: ^^^................................................................................
YYYJ^!77^?YYYYY:.^...^.::.~??~.:7YY~.~7?7!^:.^~7??~.^YY7:.............~^!.~~^^^~5!^^~~~~~7?G7~~~!!7~J?7777777!7J?!.!B7~~!!!YJ!!7J!~.!7!~^.?Y7!!?BJ577^BJ.~~~7~!!P5~~^....7J^~~!G??7^~J7:~^~~~~7J^^?7!.:!~.!7?.^7^!..?~ ^^ :~^:..............................................................................
!YYYYJ!7YYYY!:^::..::^. .^.:^...^JYY~.^~!J7??7?7~^.~YYY^.............^^~.:~^^^^75~^^~~~~~!?G!~~~!!!~J77777!7777YJ~.~G7~~!!!5?!!JJ!!^:7!!^^77JYJPP!57!~Y5:^~:~~~!7BJ~^:...:?7~~~YG!Y~^~J.~^^~~~~?~:?77~..7!!?7.^Y:!:^J^  ?! :~^:.............................................................................
 :~~^....^^^..^. :~7?!~ ::.......:^^:.. ^.~^:!.^  .:^::....~?~!!....:^^:.~~^^^^YY^^^^~~~!!?P~~~~!!!!J77?77777775J~.^P!~~!!75?!!5?!!!:^7!~7?!!!YBPJY7!~!J~^~.:^^^~?GJ~^:::.:7~~~!G7??^^J:^~^~~~~7~:~?77:..7YJ?:~Y::!?J:. .Y?..~^:............................................................................
   ...........:::.:~~^. :^..............77?!~?!7..........~JJ7JJ^...~^:.:!^^^^~P?^^^^~~~!!J5~~~~~!!757?777777775?!.^P!!~~!7P7!7P7!!!~:~7757!!^PP?YP5?!~!!^~..:^^^^?5?^::::.^~~~~YY~Y~^7!:~^~~~~!^::?77!::.?P5:~J..?J?:.. ~7Y~.^^^...........................................................................
   .............^.  .:.::...............:?J77JJ^..........^!?J77^..^^:.:^!^^^^!P7^^^^~~~!!Y5~~~~~~!?57?77777777P?!.^5~~~~!J5!!YP!!!!!~:~J5!~.?#7!!7?JJ!~7!^.  .^^^:!7?^::...^~~~!Y!7?^^J:~~~~~~~^:.7777^:~:YG:!?..?J7... .~^Y?.:~^:.........................................................................
   ..............::::........................:..............::.....~:..:~~^^^^?P!^^^^^~~!!5Y^~~~~~!?P7?77?77777P?~.^Y^^!~!YJ~!GJ~~~!~!~.77^.^GJ!!!!7!!~:!7!....^~~!!?YY7!!~~^7!!!Y?!?!^?~~~~~~~~^..~?77!.!7~G7?!..7?!.... ^^^?5~.^~:........................................................................
   ...............................................................^^:.::~~^^^~?5!^^^^^~~!!PY^~~~~~!JP??77J7777?P7~.^?:.^!!57~?B7~~~~~!!?::.:55!!!!!7!!^.:!J?!~^^^:7!^~!7~::^^^?!!???J7~7Y7~~~~~^^..:J777^.!JYGP^..7?!......!^:~YJ::~^:......................................................................
   ...............................................................~^:.::!^^^^~7P!^^^^^^^!!GJ^~~~~~~JG?7!?J7777?5!^.~7:..^J5~~5P~~~~~~!YG:..?P7!!!!!!7!^..^^^..   .:7!:^^~~::::~7^~!~!~!!GY~~^~^^^...J7!77^:~5PP^..7!7^.:.. :^^::757::~:.....................................................................
   ..............................................................^^^  :^!^^^^~7P!^^^^^^^!7GJ^~~^~~~?G??7Y?777!JY~^.~~....!?^?G?~^^^~~JB!.:^~!!7!!!!~7!^  .::.     ..!!^^::^^:::~7^7^~!^7GP!~^~::^...J?7~!7~^!PG!::7:7!.^:...:^^^:^JY~:^~:...................................................................
   ..............................................................~^: ..:!^^^^~?P7^^^^^^~!7GJ^^~^^~~?GJ?75777!!YY~:.~:... ^~7P5~^^^^~?GJ.:~??::!!~~!!7?^   .^:       .~~^^:.:^::.~7!!:!!~GG~~^^..:.. ?J!~:^7!~?GY!~?.~?:^^....:^^^::~JJ^:^^:.................................................................
   ..........................:::::............................  .~^:::.^~^^^^~JP7^^^^^^!!7G5~^~^^~~7BY7JP777!!5?~^^!!!~:.!!7Y7^^^^^7G5::77?J?!^~~~~!~Y7 .  .^.       .:^:~^.:~~::~?7.:!^YB~~^^..... 7Y!~^.:?YJYP??7.:?~~^!....:^^^:::~JJ~:^^................................................................
   .........................^: : .:.:........................   :~^....^~^^^^7YP?~^^^^^!!7GP~~~^^^~!GP?Y5777!JP?7^^~:...~!:.7^^^^:7P5^:J??!!YY!^~~~~~!5.    .:   ...::::^^^~^^^~^:^J7.:~~G^~^^..... ~5!^^::.^YPGJJ~.:^?!.?^....:^^^::::^?J!^^^:.............................................................
   ........................::. ..  :^........................   ~~^..:.^~^^^^JYGJ~^^^^^!!7PP!~~~^^~~PG?557??7Y?:::~:.  :~. :~^:::!5Y~~5?7!~!!YY^:^~^^^J^     .::^::^~7JY5PPGGGP5YJ7~7^.:~J^~^^..... ^5?~^^^!:.7GPJ::~:?~.~?. ...:^::^:::.:7?7~~^:...........................................................
   ................     ...:::. ...~............................!!~^::.~!^^^^YYGJ^~~^^^!?7PG7~~~^^~~JBJPP?7~!?~::^!.  .:  .~^:::JY!!?57!!!~~~!YY:.:~~^^~.     :^!YGB####BBBB##B#&#B#P?!^~7^~^^....  ^5?7~^:^J!:?GJ.^7:?~..?7.....^^::^:::..:!?7!!~:.........................................................
   ................     .....:::::::...........................:7!~:...^!^~^~5YGY^~~~^^~??PGJ~~~^^!~!G5P57!~7!^:^7~       ^^::^^^7JJ77~~~!!~~~~JJ...^~^^:   .!PBGY?5P55PGB#&B: :#&P!JGGGPY~~^^...   :5J?7^^::YJ!55.77:?~..~J7.....:^..::::....~7?77~:.......................................................
   ................................. .    .....................~7~!..:.~7~~~!PJBY^^~~^^~?J5G5~~~~^~!~5GP57~~!~::!7.      ^::::. ^7!7!~~~~^~~~~~~??. .:^^^. .!PJ~::YBGGBB#&&&B^.7&&&5:^5GGP5?~:.     .5Y???^::^JPJ5^J!^?^:..?J!.....::..:^:::....:!???7~:....................................................
   .................................   .  .....................7!^!^.:.~?!!~7GJB5^^~~~^~?55PP!~~~^:7~7BP57~!~^:~7:   ...~^~~^..^^. .^!~^^^^^^~~^^!!.. .:^^..:  .:^#&&&#BBBG#PPB&&&&&!:^PPY?J7~:..   .Y5????~^~7PG5YY~J?:^..^JJ!......::.:^:::......~7???!^..................................................
   ........................ ......... .  ......................?~:7^.::^?!7~J5Y#P^^!~~^~?5GPGJ^~~~^^7~5GP7~^^:^~~.::^~^!!^^^^^^.     .:^:..:^^^^^^^^..  .:^.   .^^B&&&BG5PBB#PP#BB#&~.:55~!^:..      ?5J?777!~7YGGBYJ57.^:..!JJ!......::.:^:::.......^!???7~:...............................................
   ......................       ...............................J^.!^.::^?7?!??PGG!^7~~~^?YGPG5~~~~^:!77G57~^^^^~!JPB#BG##B#BBB5^.       .:. ..:^^^^^^:.   .::   . ~&###Y7YBBGJJBBG#B.  ^^:!:...  ..  !5J?^!!~77?YGGYY5J.~^...7JJ!.......:::^^:::........^7???!^:............................................
   ....................  ..  . ...............................:J:.^~..:^??J77!GYPJ^Y!~!^?YBGPG!~!~~^^?7JP~:^^~JB&#B#BBBBGB#Y:!#&Y^        ..    .::^^^:..   ..     J#BG57!~!~!75PBB^   .::!. ..  ... ^5YJ^:77^!JJYG5P?J:!!....?JJ7...:^..:::^^:::.........:~7??7~:..........................................
   ......................       ...................  .   .....:J:.:!..:^??YJ!!B?YP^Y?!!~!YGGPGJ^!~^^^^??J^~!Y#&#J~PPPGG##&#! :#&B!.                 ..:::.          ?B57:.....^?P5^    .:^~  :.  ....:5YY!::?Y~~J5PGY~J:~!....:JJJ?:..:!^..:^^^^^^...........:!7??7~:.......................................
   ......................   ............. ........   . ..   ..:J..:~^.:^?JYJ~JB?J5!?Y77!!YPGGGP~!7~^^^^?77~?##G~:^####&&###BPB#&&P.                     ...          ~57:....:7J!...   ..!^ .^.  ::.::5YJ?^..75?~JGG!!J:^~.:...^YJJJ^...!?^..:^^^^^:............^!7J?7^:....................................
   ....................................    .   ....  . ..   ..:J..:.^::^!JYJ^PP?JYJ~P7?7!YPPPGG7~?!^^^^^7!!GBB7:::5&&&##GP5G#BB#G#^                                   .~^^^^^^^::...   .:!. .~. .^:.!^YY??7:..!YY~JP^J7:^7.:....~YJJJ~...~J7:.:^^^^^:..............^!7J?!^..................................
   ..................................   ..  .  ....       ....:J:.:. ^^^^YYJ?GJ?JJY~5Y7?!?GP55BY~7?~~^^^:!7YGB7:::^P&#GGB?JG#BY5G#!                                 ... ............  ..~^. :~...^:.J^YYJ??7^:.^J5~?!5^:~7:.:....!YJJY7...:JJ~..:^^^^:................:!??7~:...............................
   .................................   ..   .  ........ .......?:.:. ^~^:JYYP5?JJJY7!G???7PGPYGG~!J7~~^^:^?~!?J^^^. ~BBPPY77!^:^?P~                               ..................  ..!.. ^~...~:.5~?YJ?77?!:.:JY!5?.:!!::::..::!PJ?YJ^. .7J!^:.:^^^:..................:!??7~:............................
   ....................................  .     ................?:..::^^:^?5GG5JJYYYJ~YG?J?YGPY5G?~YJ7~^^^:^7~^:...    ~PP57.....!5^                              ..................  ..^....!~...~:.5~^YJJ?!7J?~::JJG~.~?!::^:::::.?G??J57. .^?!~^:.:^^:....................^!??7~:.........................
   ....................................    ........:^::~.......!^..::^:..~5GG5JYYYJJ?^PPJJJGG55PY~?P?!^^^^.^7~!:        ^7?~::^~~^...                            .................   ..^ . :7^...!^.Y7.JJJJ!~7JY?77PY::7!7:~7:::::^.PGJ7?YY^. .!!^^^:.::::.....................:!??7~:......................
   .............................................~::~.  ^^.^^.  ^~..^^^.:::5BGYYYYJ?J?~7BPYJYG5555~!P57~^^^^.~!^7^.    ....^^::.........                           ..............     .:  . ~7^:..!^.JJ.7JJJ?~^^75YJ5P^J!J?^~5~::::^:^GG5?7J57. .:~^::::.:::.......................:~7?!^:...................
   ............................................^^   ...   .~...:7..:^:.::?BBPYYYY?J?77!JGPYJPP555!~YG?!~^^^^.~^^7^..  ...................     ..                     .......        .:   ..77^:.:!~.?Y.~JJJJ7^~!!5Y5P5!!5?:~PY::::^^.7GGPJ77YY^. .^~^::^:.::.........................:~77!^.................
   .............................................~:   ^:  .^^....?..^^..:~PGBPYYYJ??77?G!YPPYYP55P7~?B57~^^^~~.^^~~:......................                                           .   ..:Y7^:.:7~:?5::JJJJJ~:!?7YPP7.~Y7:^5P7::^^^:.5PPG57!?Y?:...:^::^^:.::..........................:~77~:..............
   ............................................^~  ..  .. .!... !::^:.:^JGBPGYYY???77PG57Y5P55P55?^!GP?7~^^^!~.^^^~.....................                                           .    ..~57^:.:7!:?Y!.7JJJJJ^:~J?5P^.7Y!^~Y55^:^:^^.^GPPGPJ!!?Y~....:^^^^^::::...........................:~77~:...........
   .............................................:::~:  ~^::.....:~:^..:!YGPY55YJ?77!JG5P57?Y5P555J^~PP?7!~^^~7!.~^^~. .................                                           .    .:.J57^^.:77^?JJ.~J??JJJ~:^J5P!:YJ~!7JYPY:::^^^.7GPPPP5?!!??:....^^^^^::.:::...........................:~7!^.........
   .................................................::::.........~^: .^!PBJ5YYYJ77!7PP555Y??JY5GPJ~~5PJ!7~^^^!J!.!^^!: ..............                                            .    :7.:PY?^^::7?!??5^:J????JJ!::JGY7P7!J!JY5P?:::^^:.YP55555Y7!!?!.....^^^^::..:::............................:~7!:......
   ............................................................. ^!..~~YGP75YYJ?7!!YP555YJJJJJJ5GY~~Y5?!J!~^^~75~.7~:^:  .                                                           !J!.7GJ?~^::?J?J7Y7.7????J7?!^:YGGJ?YJ!YJJ5P!.::^^.:PP5555Y5J7!!!:.....^^^:::..:::.............................^77~:...
   ..............................................................^~ ^^?G577PYJJ7!!?P555YJJJJJJJY55!~Y5?!Y7~^^^!?P^:YJ??^                          ..      ..                       :???^:5PJJ~^^:?JYJ7?J.~????J!~77~!PP?YJ!5YJJJ5P~.::^:.!GP5J55YY5J7!!^.....:^^^::...::::............................:~77^.
   ..................................:?J?^~^....................:^:^^!PJ7!?PYJ?7!!Y555YJJJJJJ??J5Y!~J5?!?Y~~^^~7JG^:YJJY~                         ..                             .7J7??:7GYJJ!^^^?J5J77Y~:?777J?^!~!JJ5JJ7J5YYJ?YPP^..:::.?GPPJJ5YJJYJ7!~:... ..^^^:....::::.............................:!7
   ................................:7?JJJJYJ^...................^^^^~5?^?~JPY??7!?555YJJJYJ????Y5Y!^?5?7!57~~^^7?P5~^5J?Y7.                                                    :!??7777:YPJJ?7^~~JJ5J7!J?:7777?J~:7!^?YY!5J5JYYJ?YP5:..:::.YPPPY?JYJ?JYJ7!~:... ..^^:......:^:..............................
   ................................:?J?JJJJ?:..................:^~^^J7:!7~YP5?7775555J?JY??????YYJ!^?577~JY~~~^~7JY?^^5?7JJ^                                                 :^!7777!7!^5Y7J??~^~JYYJ7!7J:~?777J7^:7J!YJJ5Y5JJYY??YGY....:.:5PP55J7JYJ?JJJ7!~....  .:^:.....::^:............................
   ..................................~JY7!?!...................^!:^7!::?~~YP5?77?555J?JY?????7JYJ?7^7P77~757~~^^77Y!?~^YJ??Y?^.                                           .:^::~!77!!?^75?7J??!~~?PYJ7!!J~:?!!!7?!^:!JY?5Y5YJJ?YY??YGJ....:.:5PP5YY77JJ???JJ?7~....  .:^:.....::^:..........................
   ....................................:......................:~:^!~::^7~~JP5??7Y55Y??YJ??7777JY?77^!57!~~JJ!~~^!7?77?!^YJ7YJ??7~:.                                    .:^::::.~!!!!!7:J57!?J77~~7G5J7!!??:?!!!!7?7!^~YY5JPJJJ??YY??5G7......:5P5YJ5?!7?J?7??7?7~:...  .:^^.....:::.........................
   ...........................................................^:^!~:::~!^~JP5JJJ5YYJ?JJ?77777?JJ77?~~Y7!!^7J!7~^~7!?777!~YJJJ777777!!^:..                           .:^:::::...^!~~~~~~YJ7!7J7?~~7YGJ!!!7J^?!!!!!!!77!?5?YJJJJJ7?YY??5G!......:5P5YJYY7!7??777!!7?~....  .:^::....:::.......................
   .........................................................:::~!^:::.J~^~?P55YYYYY?JY?777777?J?!!?~~J?!!^!?777~~!!77!!!!7YYJ777!!!!777!!!~^::..                ..:^:::::.......Y5YJ?~!?J!~!???!!!!G5!!!!Y~J!~!!!7?JY5P5555GGGP5JJ5Y??5P~......:55YY?J5J!!7??777~~7?~....   .:^:.....::.....................
   ........................................................:::~!^:::.7J^^^7PPP55YY?JJJ7777!!7?J!!!7!^??~~~~7?~?7~!7!?!!~~!7YJ?!!!!!!!!!!!!!!77!!!:::....    ..::^::::::.........7GGGG~77J!^~!7??7~~7P7!!!Y7J!!7?Y5GGBB#BB##BBBG5JJYP5J?5P^......:55JY?75P?!!7?77?!^^!7^.....  .:::.....:....................
   .......................................................:.^!!^:::.~J?^^^7PPPPYYJ?JJ7!!!!!!7JJ!!!77^?J~~~^!?!!J7!7!7!~~~!!!JJ?7~~!!!!~~~!!!!!~!?::::::^^::^^:::::::............:PGG5:??J7!!!!7??~~~JJ~!~JJY7?JJYPGBB###G##B##BG5J?5GG5J5P^.:....:Y5??77YGY7!!77777~::~7^.....  .:::.....:..................
   .....................................................:..~!!^^^^:~7?7^^^!PPPPYJ?JJ?!!!!!!!?5!!~!!7^7J~~~^~!7~?J??7!7~~~~~!!!7J7!~~~~~~~!~~!7J5J:::::::::::::::.......... ......~GG5:??JJ!?~~77?7~~~Y!~!JJPPG5JJP####BGP5GBBBBB#BPY5BBBP55^.:....:YY7?7!JPGJ!!!777?7~::!7~.....  ..::......................
   ...................................................::.:!~~~:..:^~~J!^^^~5P5PYJ?J?7!!!!!~7YY~!~!!7~!J~^~^^~!~~JYJ?77~^~~~!!!~~7??!~~~^!!!7?5GBJ:::::::::::::.........      .....!GY:?~?Y7Y!.^!??7~~!J!!JJGBBG5B#BBBBGPPYJPGBGP5PGBG5GBBYJ5^.:.....JY77!!?5GP?!!!7777!^:^~!~:....   .::....:...............
   ..................................................:..~7^^~~  .^:^~J!^^^~JGPPJJ???!!!~~~!7J7~~~!!!~^?!^^^^~~!~!YYJ?!7^^~~!~~~~^^~777~~~775BBBB!::::::::............         .....~7:77JY?Y^...!7?7~~!77YYBBBB##PGBBP5PP?7JYPBBGYJJ55YGPJ7J5^.:.....7Y!!!!?5PG57!!!7777~^:^^~~:....   .:::...:.............
   ...................................................:!!^.:~: .:^:~~??^^^^7PGPJ???7~~~~~~!77!~~~!!!~^7?^^^^^~~~~!J5J!7!^~^~~~^^^^^^~~!!7??YGBB?::::..............              ...:^:77?5Y7.....~7J?!~!JPJYPGBPJJGBPJJ5P?!7JYYPBGJJJ??YP5J7?Y^.^.....~J!!~~7Y5GPY!!!!777!~^:^^~^:....   .::::.::...........
   ...............................................:..^7~:::^~. .^.~~~?J~^^^~JGPJ???!~~~~~~7!7~!~~!~!^:~7!^^^^^^~^~~755?7~^^^^~^^^^^:...:JY??YY~.................                  .:^:!!!PY:......~7?J?!!J7^~~~^!Y55JJ??Y??!7JY7JYYYYY?7YGPJ77Y~:^:....^7!~~~7JYPP5J!!!!777!^^^^^:::.....  ..::..:..........
   ................................................:!7^::::~~  ^.^~~!J77^^^:7PBJ??7~~~~~~!7^!~~^~~~!^^^!!~^^^::^~^~~~?Y5J~^^~^^^:......:JJ!~~..................                   :^^:^JYP!........~7~!??777~^^~YGGP7J?7?YJ?!7Y?!7YGGGGJ7YGPJ77J!:~:....:!!~~~7JYPPP5?!!!!!!!~^^^^...:.....  ..::.::........
   ............................................:..^!!^::^::~^ :::!~~??!Y!^^.~JBY77!~~~~~~7^^~~~^~~~~^^^^!~^^^^::^^^~~^^~Y57:.::. .......??~^~................                    .^^^^:J5~?:.......:~J^.~??77!^^~7??7J?!!JJY?!JJ77~JBBG777JPPY7!J7^~~.....~!~~~!JYYP5PY!!!!!!~^^^^:..........   .:::^:......
^. .............................................:~~~~::^:.^~::^.~~~777~?Y^^..75G77!^^^~~!!.!^~^~~~!^^^^:^7~^^^::::^^~~~^:^???::.........!7~^~:....                              :^^^^7~!7.!!::::::^:!GP!..^7???7~^~7?7~^^^~~~~!7!7!~7P?777!JPP?!!J?~!7. ...~!~~~!JJ7555Y7!!!!~~^^^^:..........    .:^^:.....
!^.:......................................... .^^^~~:.::..~~:^.^!~!7!!!~G7^^.:?GJ7!^^^~~7^^!^~^~~~^^^^:::~7!^.....:^^!~~~^.:!:^.........:?!^~:...                              .^^:^75J~?!:?^::::^^!~!YY~:...~7?J?YY!~~~~~~~~~~^^^^^^^^~7YYJ55Y77!?Y!7?: ...^!~~~!??^JJJJ!!!!!!~^:^^:...........   .:~~^....
^:.::........................................:~^^~^..^:...~^^.:7!!?7!!7:5P~^:.~?P7!^^^~~!:~~~~~~~:.......:~77~^:.:::^^7?!~~:..:::........~?~^~^                        .     .:^:^~?5Y^:7?!~?^::^^!BP7?!^~~:....^!7???7!!!~~~~~~~~^^^^^::~?PGG5?!7!?Y77J^....^!~~^!?7:7?7?~~!!!~~~^:^^:...........  .::~!^..
^..::.......................................~~:^~^..^:...:~~:.~7^!?!!!7~~G?~:..~?Y!~^~~7~:~~~^:::.....:::::^~!7!^:..:::!5J7!~^^~!~::::::::77^^^.                      .      :^::~J5?::^^~777J^^^!GP~7?~~!!7YY~:...::~!7???77!!!~~~~~~!!!!!7?7JY!~7!?5?7J!... ^!~^~!?!.!7!7~^~!!~~!~::^^:........... .:.:!7^
...:....................................:::!^:^~~..::....^!~.:?~^?!!!!!?:YJ!^...~??~^~~7^^~^....:..:::::::::^^:~77!~::::^J5?7777???!^::^~~!?7^^^.                    .     .:::^!Y5!::::^^:^~7J~^5P!~?5J777JJ7~~~^:......::^^^~~~~~!!!!!!77~^::~7~~7!?5J7J7:.. :~~^~!7^ ~7~7?!^^!!~!!^.:^:.............:..:7
.  ....................................::^~::^~~..::.....~!:.7!:!?!!!!?J^^Y~!:...~?7~~!!::.........::.....:::^^^^~!7??7!~^!???5J?77777~:.::~?7^^:                  .:.    .^:::75Y^..:::::^^^^:7BP7~~!J!!!!~~^~~~~~~^^^^::........:::^^~~~^::....^^~7!75J!?J~....~~^~!!. ~!~75Y!^~!~~!~:.^^:............:. .
^^:...................................::~~.::~~:.::......~~ :7:.?!~!!7J^~:7?^!.  .~!~~7^:......:...^.......::.:^^::^^~7?JY?!!7PB?7?7777!:.. .::^^^.               ::  ...::^^^?GY:.........:^::^!~~!~~J~~^::...:::::::::::::::^^^^^^^^^:::.........:~7!7Y?!7?7:. .^~^~!~. ^!~!5Y7~!7!~~!^..^:............:.
!~:..................................:^!^.::^!:.::.......!..!^.~7~!!!J7.^~:?~^~.  .^~^!:...........:............::..::::^~?J?!!??J5YYY?77^.      .^:....       .::.  .  :^::^5B?.....    ....7G~......^:........              ....^::::::.....  ....:~!!7J7!~7?!:. :~^~!^..^~^!5Y!~!7?!~!~..:^:...........:.
^.   ...  .....:.:::................:^!:.:::~^..^:......:~ :~..7~~!!J?~.^^^:?~^~^. .:~~:..     ........................::^^^:^!!77JJ7~::^~^..      ..:::.    ...      .....:5G^          .  ?G!...:.................. ..... ....:JG5P!......~^.    ..:~!!!?!~~~!?!: .~^~!: .^~^!YY7~~!??!~!^ .^^:..........:
:. ..     :^...   .^^::.............~!..::.~~..^:.......^:.^:.~!~!!J??::^^^^~?^:~!:  .~!~:.  .........           .............::!!^~!!~^^^^^:::...    .^^::..         .   :5J.         ....^~:                          ........YB#PGG.     ~55?.     :~!~!7!~^^~!7!..~^~~. .^~^~!!!~~~7J7~!~. :^^..........
~^^.      ::::     .^:^............!J..::.^~:.::........:..:..7~~~7?77.:^^^^^!?^:^!~. .:!!~:.      .:.          ............ ....~J:.^^^~!~^^^^::^..:^~!!~!~.            ~57          .:...          ....                       ..^7Y5?      J55!..    .^7~~7~^^^^~7?~:^^~~. .^^:^^^~!!~~?J!~!: .:^:........
?7^::.....:^:.    .:::^...........75:.::.:~^.::....... .: .:.~~~~!?!7~.^^^^^~^!7^^^!~:. .^!!^:.    .:.       ....              . .JY..:......::^^~77!!!^...^!~.        .?5^         .:.. .......::^^^..                            ^YY5:     !557 ...    ^7~~!~^^:^^~7?!!^~^ ..^::^^:^^~~~7J?!!^...^:.......
??77!^:::^~^:....::::::..........!P~.::..~~..::.. .... :.....!~~~?!!7:.^^^^~^^^~!^^~ .... .^~^^^:.  ..                    ....... :PJ..^..........:~~~^^^:..:!7^.     :JJ.         .:..............                               .:JY5!     ^55J   ....  :!!~!~:^:^^^~77!~~: ..^..^^^^^:^~!?J7!~...:^:.....
 .~777!~^^^^::^::::::...........^57..^:.^~:.::. . .....:... ^~~~77~!7..^:^^~^:^~~~~:    ... .^~:::^:::              ...............~GJ.:^...........^^^:^^:::.^7~:   ^5?         .:....:::...            .....                    .:?55?     :55Y      ... .~~~!^::::^^^!7!~^. ..^..^^^^:::::!JJ!~:...^::...
.  ...::::........:::..........:5J:.::.:~~..^:... ... :: ...!~~!?~~!!.:^:^^^^:::~~7:      ... .^~^..^~^.       .....................^7. ...  .       :^:::..:::^7!:.7G~        ..:.::^~^..         ...::^!~:.                     ..?55J     :YYY.        ....^~7^^:::^^^~!!~^...:^..^^^^.::..:7J7!^...:^:..
!!^::::::.......:.::::.........?Y~.::..^~:.::........:?... ^!^~7!^!!!.::::^::::::~~~^:..  ..... .:~^..^^~^.  .................   .    ^?. ..          ^^..:  .::^7!!P:       ...:::^^:.       ...::::.....      ..               ..:?5YY.    :YYY.           ....^^^::::^^^~~~^...^:..^^^::^:...:7J!~...:^^.
777!~~^^^::::::.:::^:::.......:J7:.^:..~~.:^:.......^?7....~~~!7^~!!!.:::^^.:::::^7~!!!~~^^:.......:~^:..:!~:..............           .Y?  ..         .~^... ...:!?!^        .::::..    ......:::...           .......         ....:75YY.    ^BGY.             ..  .:::::^^^^~~^...^..:^^:.^:.....:!7!:...^^
?77!!!~~^^^:::::^:::::........!7!.:^..^~:.::.......~!J~ . .!^~7~^~!7!.:::::.::.::~~^~!!!!~~^:.........^~^.:^~!^..........              .7?. ..         .!:......!5!!!.      .::......::^:......           ....::..          ......::?5YY.    7B#5                .   .^^::^^^^^~^...^..:^^::^.......:~!^...^
J??7!!!~~^^^:^^^::::.........^7!^.::..~~..^:.....:~~7J^ . ^~^!!^^~!7!.:::::.::.::~..:^~~~~~~~~^:.......:^~~:.:~!^.....                   !5^ ..         ~!.. .:JJ. .!:   ..:..::::::.........      ....::^^^^~:.    .............::^Y55J      :?!                 ..  :^^::::::^~^..:^..^^::^:........^!~...
YJ??77!!~^^^^^:::... ........^77::^:..~^.:^.....:~:~!J: ..!~~!^^^~~7~.::^::.::..:!:  ..:^^:^!!!~~^:..:!:..:~!^:.~!:                       ~J. ..        ..   ^5!    :^   ...:.....  ...........:..:......::..     ..............::^~5557                            .  ^^^::::::^~^..^: :^^^^:.........:!~:.
JJJ??7!~~^^^^::.............:^7!.^^..:~^.::....^^.:!!?.. .!^!~^^~~~~^.::^^:..:..^!!.    .::....:^^!7??~.....^!7~::~^.                       .!...          .7J.     .^   .7Y:    .........::::...      ...     ..:^^^^^^^^^~~!?JY5PGGY5^                             . .^^:::::::^~^..~..^^^^^...........~!^
?!!??!~^^^:.................^:?!:^^..:~:.::...^^..:!!7.. :!^!~^^~~~:^.:.^^:..:..~^:::......:.....^~7?!!!~:....^!7!^~!.                     :JP55Y7!:      ~Y!       :.  ^5P^    .:::::::::..         ...    ..:~~~~~~~~!!!777J#B####GYY.    YJ^                       . .^^:.:::::^~:.^^..^^^^:...........^!
!!7!7~:^:..................:^:?!:::..^~:.::..~^...~!!7.. ^~~!^^~~~::~...^^:..:..~^..:~~......:.:^^~~....:^~^.. .^7?!!7:                   757::?5?~?Y~..:??.        :.:JBG?7:    ....             ........:::::::::....::::^!?BBB###G5!    :P#5.                       . .^^:.:::::^^:.~:.:^^::............:
7~!!7?!^:..................:::?~:^:..^~..::.~:..:.7~!7...!~!~^^~~:::^...^^^.....~^^^...^^:....::::~...    .:^:.  .^!77?.                 ^P7    .7?~~Y5??:       .:^YGGPYJJPB?                  .......:^^:..    ............^PBBB##BP:    YGG~                         . .:::.:::::^^::~..^^^::...........
J7!~~7JJ^::................:::?~:^:..^~..:^~: .:.:7~!?. .!~7~^~~:::..:..^^~.....~~:......:::....^^....       .::... .^77.                !5~     .~?JJPG7     .~YG#BGJ^...:!BG.                .....:^::.            .........^GBB#BBP:.. ^55Y                           ..  .:::::::^::^^.:^^:::...........
YY7~~~!77~^:...............:.:?!:^:..:~:.^^:..:: ~7~!?. .!~7^^!^:::..^..:^!....::........ .:^^^~~.......        ....  .!!:               ^5J.  ....~??JYBG!:^YB#BP?^.      ^BG.              .::::::.                 .......:.^GB#GP!....Y55!                            .    ^^:::::~::^::^^^:::..........
5YJ!~~~!7?7^:..............:..7!:^:..:^::^:..::..!!~!?. .!!7^!^:::...:..:^~^..:!.............:~7^...   .....      ...   ~!~              .^!?77!!7Y5!~~7P##B##5!.          !GY                                         .......:.!B#GY:.. ~5YY.                             .    :^::^:^^.^^:^^^::::.........
555?!!!!!!?J555?~:.........:..~!:^:..:^^^^:.:.. .!~~!J. .!77!~^:^:...:...^~~...^~:..... ...:::~^......      ...     ..  :.^!              .:..^!7~~~~!Y#G7^!BBPY!^:..     :55:                                         ..........J#GJ....Y55!                               .     :^^^:~^:^:^^^^:::.........
5P55J77777?J5G#B5YJ~::.....:..:!^^:...^^::::... :!~~!J: .~7?!^^:^:....:..^^~....^:...   ..:.:^~....                 .   .. :!             :~!~^:....:?G!   :5B^^!7??Y555YYGG:                                           .........:BG!....5BG7                                .      .^^:~:^^:^:^^::^........
Y55YJ!:...:^~!J~^~?5J7^:.......~^^^..:^^::^:....:!~~!Y^ :~?7~^~^::....^..^^~:..:^.... ...:.:^^:....                 .   ::  .~          ...:^.      ^B!  ...~B? ..:..::^~!~.                                             .........?P^....?BBY                                 ..      ^^^^:~:^::^^:::.......
???7.           .~!!Y557:::....^~^^::^:^^^::....^!~~~J~ :~7~~^^^:::....:.:^~~..^:.......:::^^^....                 .    ~.   :.          ...        ?B:..    5B.  .                                                       ........:Y:..:.7PB5                               .  :.      :^~:^^^^::^::::......
Y7:       ..    ..7!~~JBY^.::...~^^^^:.:^:.:....~~~~~J7 .!!~^::^^:::...:..^~^:.^.......::.::::...                      .:     .      .....          JB:      :BY                                                           ........7:..::Y555.                                 .^.      :~~^~:^::^^::^:.....
?      .:~:.......:^~~~7GG! .~:.:~^^^..^^^.:.. .!~~~~?J..!7~^:::^^:::.....:^^^.:..:...:::.::^....                     .:             ...           .J#~       ~#7  .                                                        .......^:...:JBGP.                                  .^.      .!^!^^:::^^.:^.....
    .....      ...  ..:~!P#J ~57^^^^:.^^.:^:....!~~~~7Y:.77~::^..^^:::..:.:^~^~:..::::::...:^...                     ..             ..            . :BP        7B~                                                          .......:^....!#BB^                                   .^...... ..::^^:::^::^:....
..           .........::!!P#^ ~5Y~^^^^^...^:.. :7~~~^7Y~.7J^::^...:^:::..:.^~^^...::::::....:....                                  :.           .    ?B~        ?B~                                                          ......:^.....75G7...                                 .::::...      .::^^::::...
         ...          ..^!!P7  7557^^^:....... :7~~~^!Y~.!5~:::....:^^::....~~^...::::......:....                                 ..           .     .J5^        7B!                                                         ......:J...... ..                                     .^^^::::.       ..::::..:
      ...         ........~!!   J5Y::^^......  :?!~~~~!^:^57:^:......:^::::.^!:....::.......:....                                ..                   .?5^        ~P7                                                        ......^B:.....                                         .^:^:^^:.        ...^::.
   ..          ...     ..:!7!^  ^55?  :^:.:..  ^?!~~~~^^^.J?^::........^:::::!.............:::...                               ..          .           !57        ^5J.                                                     .......7#?......                                         .:::......   ...   .^^:
  ..        ...           :~7!^ .GP5.   :^...  ^?!~~^~^^~:!?~:^:........:::::^.......:::::.:::....                             ..         ..             :YJ.      .:?5!                                                   ........!BB:....J57.                                        .:::........      ^^:
         ...        :!!~^:.:~7!  PBG:    ...   :?7~~~^::~~:?!~::..........::^:...:..::::::::::......                           :         ..               .75!     .. ^5Y:                                               .........:^Y#7... ~BBB~                                        .:^^::..   ..    ^^:
       .:.        :?PGGPPY?!!77. PBB:      ..  :??~~~^::^!:!!~^^:...........:.....:.::::::.:::........                        :.        ..                  :YY:   ..  .757.                                          ............~:~BG... .Y55?                                           .:^^:    .....^^:
       .        .7PGPJ77!!!7?J?..PBB.       .:..?J!~^::::~!^!^^^^:................:::::::.....:..........    .               .:        ..                    .~5?. .   ..:J5!                                ..  ............::::^^:.Y#7    75Y5.                                            .:^:      ..^^^
       .      .~5GGP5Y7!~~~~!!?^.GBG.         . .!7~~:::.~!~^~^:^^:...........:.....:::::.....:...........   ....           .^.       ..                     ...757:    ...^5P~                         ... .... .....:::::^:::::!^:.:GG.   .5Y5!                                              .::     .:^~^
             .7BP5PP55Y7~~^^~~!!:.!?.          .  .^~^^:.^!!^^^^:::......:.......:.....:::.....:........... ..::.....      .:~.  ..   :.                      .. ^55:  ... ..^YY^..                    ... ......:..::^^^^^^^^^^!~^~:.7#7    !5YY                                            ...:::.......~^
~            :^J5J5555YY?!~^^^~!!:                  .::. ...             .::...:..:::..........:........... :::::.:.::......^^ ..... .:.                      . .^^JG7....  ..:7^.::.   ...........  ..:...::...::.:^^^^^^^^^^^~~^::~^:YB.   .YY5^                                                .:..  ..:^
P!  .         .:~JJYY55YYJ!~^^^~~!^                   ..                   ::........:::........:.......... .::::..::^::::::~:.......^:...               ..  ....^~^^GY^::...~!77!~..:............ ......::::..:::::^^^^^^^^^^~~^^^::^^~GJ    ^55J                                                  .....~~~
PB^  .         ..^7JJYY55YJ7~~^^^~!~.                  ...                  .:.....:....::.......:....:......:.:::.::^:::::^~..::::::^^:........................::^~.!!..~:..^!!~~!:.~~::::::::.........:::::..::::^^^^^^^^^^^~:^^^:.::::5~    ?55!                                                   ...~!!
5BB~            ..:!JJJY55YY7~~~^^~??.           .        ..                ..::....::...........::....:::.......::.::^::::^~.:::::::^:^::...........:::....::..::~~^77^:!^:::~!!!^~!!..^:::::.:::.....::::^:..:::^^^^^^^^::^!^::^^^:.::.:J.   .Y55^                                                     ..^
.5B?             ..:~?JJY55P?.!!!!~!?~.           .         .                .....::.:::..........^:..:..:::..::...:..:::::~^:::::::^^::^::::::::::::::...::::..::~.^777^.:^::^~!!!^!J~.:^::::::::::..:^:^^^..::::^^^^^^^^::7!~^::^^^.::: :~    :GBG:
 .:                ..:~!!!777:~~^^^^~.^                                         ...................^. ....... ........ ....:........::........................ ..::.^^^~^:::....^^^:.^~:............ .:...:. ........::::..:^^::....:....  ..    .~?J.
 */
/*
 * powered by ANDRIY POPYK
 * in honor of MYSELF and SEGMENT DECOMPOSITION and N^(log(N)) and (Harry Potter and the Methods of Rationality) and Monkie D. Luffy
*/
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

//#pragma GCC optimize("O3")
//#pragma GCC target("avx,avx2,fma")
//#pragma GCC optimization ("unroll-loops")
//#pragma GCC target("avx,avx2,sse,sse2,sse3,sse4,popcnt")

using namespace std;
using namespace __gnu_pbds;
#define int long long
#define float long double
#define elif else if
#define endl "\n"
#define mod 1000000007
#define pi acos(-1)
#define eps 0.000000001
#define inf 1000'000'000'000'000'000LL
#define FIXED(a) cout << fixed << setprecision(a)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define time_init auto start = std::chrono::high_resolution_clock::now()
#define time_report                                       \
    auto end = std::chrono::high_resolution_clock::now(); \
    std::cout << std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count() << " ms" << endl
#define debug(x) \
    { cerr << #x << " = " << x << endl; }
#define len(x) (int) x.size()
#define sqr(x) ((x) * (x))
#define cube(x) ((x) * (x) * (x))
#define bit(x, i) (((x) >> (i)) & 1)
#define set_bit(x, i) ((x) | (1LL << (i)))
#define clear_bit(x, i) ((x) & (~(1LL << (i))))
#define toggle_bit(x, i) ((x) ^ (1LL << (i)))
#define low_bit(x) ((x) & (-(x)))
#define count_bit(x) __builtin_popcountll(x)
#define srt(x) sort(all(x))
#define rsrt(x) sort(rall(x))
#define mp make_pair
#define maxel(x) (*max_element(all(x)))
#define minel(x) (*min_element(all(x)))
#define maxelpos(x) (max_element(all(x)) - x.begin())
#define minelpos(x) (min_element(all(x)) - x.begin())
#define sum(x) (accumulate(all(x), 0LL))
#define product(x) (accumulate(all(x), 1LL, multiplies<int>()))
#define gcd __gcd
#define lcm(a, b) ((a) / gcd(a, b) * (b))
#define rev(x) (reverse(all(x)))
#define shift_left(x, k) (rotate(x.begin(), x.begin() + k, x.end()))
#define shift_right(x, k) (rotate(x.rbegin(), x.rbegin() + k, x.rend()))
#define is_sorted(x) (is_sorted_until(all(x)) == x.end())
#define is_even(x) (((x) &1) == 0)
#define is_odd(x) (((x) &1) == 1)
#define pow2(x) (1LL << (x))


struct custom_hash {
    static uint64_t splitmix64(uint64_t x) {
        // http://xorshift.di.unimi.it/splitmix64.c
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }

    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};

template<typename T>
using min_heap = priority_queue<T, vector<T>, greater<T>>;
template<typename T>
using max_heap = priority_queue<T, vector<T>, less<T>>;
template<typename T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<typename T>
using ordered_multiset = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<typename T>
using matrix = vector<vector<T>>;
template<typename T>
using graph = vector<vector<T>>;
using hashmap = gp_hash_table<int, int, custom_hash>;

template<typename T>
vector<T> vect(int n, T val) {
    return vector<T>(n, val);
}

template<typename T>
vector<vector<T>> vect(int n, int m, T val) {
    return vector<vector<T>>(n, vector<T>(m, val));
}

template<typename T>
vector<vector<vector<T>>> vect(int n, int m, int k, T val) {
    return vector<vector<vector<T>>>(n, vector<vector<T>>(m, vector<T>(k, val)));
}

template<typename T>
vector<vector<vector<vector<T>>>> vect(int n, int m, int k, int l, T val) {
    return vector<vector<vector<vector<T>>>>(n, vector<vector<vector<T>>>(m, vector<vector<T>>(k, vector<T>(l, val))));
}

template<typename T>
matrix<T> new_matrix(int n, int m, T val) {
    return matrix<T>(n, vector<T>(m, val));
}

template<typename T>
graph<T> new_graph(int n) {
    return graph<T>(n);
}

template<class T, class S>
inline bool chmax(T &a, const S &b) {
    return (a < b ? a = b, 1 : 0);
}

template<class T, class S>
inline bool chmin(T &a, const S &b) {
    return (a > b ? a = b, 1 : 0);
}

using i8 = int8_t;
using i16 = int16_t;
using i32 = int32_t;
using i64 = int64_t;
using i128 = __int128_t;
using u8 = uint8_t;
using u16 = uint16_t;
using u32 = uint32_t;
using u64 = uint64_t;
using u128 = __uint128_t;

template<typename T>
using vec = vector<T>;

using pII = pair<int, int>;
template<typename T>
using enumerated = pair<T, int>;

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n, k;
    cin >> n >> k;
    struct rectangle {
        int x1, y1, x2, y2;
    };
    vec<rectangle> rects(k);
    for (int i = 0; i < k; i++) {
        cin >> rects[i].x1 >> rects[i].y1 >> rects[i].x2 >> rects[i].y2;
    }
    int size;
    auto get_color = [&](int x, int y) -> bool {
        int xb = x / size;
        int yb = y / size;
        return (xb + yb) % 2;
    };

    auto calc_pref = [&](int x, int y) -> int {
        int cnt = 0;
        int xb = x / size;
        int yb = y / size;
        xb *= size;
        yb *= size;
        cnt = ((xb / size) * (yb / size) + !get_color(xb, yb)) / 2;
        cnt *= size * size;
        if (get_color(xb, yb)) {
            cnt += ((yb / size) + 1) / 2 * (x - xb) * size;
            cnt += ((xb / size) + 1) / 2 * (y - yb) * size;
        } else {
            cnt += (yb / size) / 2 * (x - xb) * size;
            cnt += (xb / size) / 2 * (y - yb) * size;
            cnt += (x - xb) * (y - yb);
        }
        return cnt;
    };

    auto calc = [&](int x1, int y1, int x2, int y2) -> int {
        int cnt = 0;
        cnt += calc_pref(x2, y2);
        cnt -= calc_pref(x1 - 1, y2);
        cnt -= calc_pref(x2, y1 - 1);
        cnt += calc_pref(x1 - 1, y1 - 1);
        return cnt;
    };
    vec<int> divs;
    for (int i = 1; i * i <= n; i++) {
        if (n % i == 0) {
            divs.push_back(i);
            if (i * i != n) {
                divs.push_back(n / i);
            }
        }
    }
    srt(divs);
    int best = inf;
    for (auto d: divs) {
        if (d == n) break;
        size = d;
        int cnt_black = n * n - calc_pref(n, n);
        int good = 0;
        int ans = 0;
        for (auto r: rects) {
            int tr = calc(r.x1, r.y1, r.x2, r.y2);
            ans += tr;
            good += (r.x2 - r.x1 + 1) * (r.y2 - r.y1 + 1) - tr;
        }
        ans += cnt_black - good;
        chmin(best, ans);
        chmin(best, n * n - ans);

    }
    cout << best << endl;
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 19 ms 2552 KB Output is correct
2 Correct 5 ms 860 KB Output is correct
3 Correct 10 ms 1628 KB Output is correct
4 Correct 12 ms 1884 KB Output is correct
5 Correct 15 ms 2140 KB Output is correct
6 Correct 10 ms 1524 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 9 ms 1372 KB Output is correct
9 Correct 28 ms 3416 KB Output is correct
10 Correct 19 ms 1884 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 8 ms 1116 KB Output is correct
17 Correct 18 ms 2908 KB Output is correct
18 Correct 27 ms 3420 KB Output is correct
19 Correct 83 ms 3164 KB Output is correct
20 Correct 87 ms 3416 KB Output is correct
21 Correct 18 ms 2904 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 16 ms 1628 KB Output is correct
24 Correct 25 ms 3164 KB Output is correct
25 Correct 4 ms 604 KB Output is correct
26 Correct 16 ms 2140 KB Output is correct
27 Correct 29 ms 2392 KB Output is correct
28 Correct 27 ms 3416 KB Output is correct
29 Correct 8 ms 1372 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 19 ms 2552 KB Output is correct
2 Correct 5 ms 860 KB Output is correct
3 Correct 10 ms 1628 KB Output is correct
4 Correct 12 ms 1884 KB Output is correct
5 Correct 15 ms 2140 KB Output is correct
6 Correct 10 ms 1524 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 9 ms 1372 KB Output is correct
9 Correct 28 ms 3416 KB Output is correct
10 Correct 19 ms 1884 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 356 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 8 ms 1116 KB Output is correct
27 Correct 18 ms 2908 KB Output is correct
28 Correct 27 ms 3420 KB Output is correct
29 Correct 83 ms 3164 KB Output is correct
30 Correct 87 ms 3416 KB Output is correct
31 Correct 18 ms 2904 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 16 ms 1628 KB Output is correct
34 Correct 25 ms 3164 KB Output is correct
35 Correct 4 ms 604 KB Output is correct
36 Correct 16 ms 2140 KB Output is correct
37 Correct 29 ms 2392 KB Output is correct
38 Correct 27 ms 3416 KB Output is correct
39 Correct 8 ms 1372 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 78 ms 2908 KB Output is correct
42 Correct 31 ms 3160 KB Output is correct
43 Correct 49 ms 2908 KB Output is correct
44 Correct 30 ms 3160 KB Output is correct
45 Correct 26 ms 3420 KB Output is correct
46 Correct 78 ms 3164 KB Output is correct
47 Correct 26 ms 2896 KB Output is correct
48 Correct 37 ms 3164 KB Output is correct
49 Correct 26 ms 2904 KB Output is correct
50 Correct 323 ms 3160 KB Output is correct
51 Correct 347 ms 3480 KB Output is correct
52 Correct 319 ms 3160 KB Output is correct
53 Correct 360 ms 3480 KB Output is correct
54 Correct 316 ms 3248 KB Output is correct
55 Correct 350 ms 3416 KB Output is correct
56 Correct 319 ms 3164 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 19 ms 2552 KB Output is correct
10 Correct 5 ms 860 KB Output is correct
11 Correct 10 ms 1628 KB Output is correct
12 Correct 12 ms 1884 KB Output is correct
13 Correct 15 ms 2140 KB Output is correct
14 Correct 10 ms 1524 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 9 ms 1372 KB Output is correct
17 Correct 28 ms 3416 KB Output is correct
18 Correct 19 ms 1884 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 356 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 8 ms 1116 KB Output is correct
35 Correct 18 ms 2908 KB Output is correct
36 Correct 27 ms 3420 KB Output is correct
37 Correct 83 ms 3164 KB Output is correct
38 Correct 87 ms 3416 KB Output is correct
39 Correct 18 ms 2904 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 16 ms 1628 KB Output is correct
42 Correct 25 ms 3164 KB Output is correct
43 Correct 4 ms 604 KB Output is correct
44 Correct 16 ms 2140 KB Output is correct
45 Correct 29 ms 2392 KB Output is correct
46 Correct 27 ms 3416 KB Output is correct
47 Correct 8 ms 1372 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 78 ms 2908 KB Output is correct
50 Correct 31 ms 3160 KB Output is correct
51 Correct 49 ms 2908 KB Output is correct
52 Correct 30 ms 3160 KB Output is correct
53 Correct 26 ms 3420 KB Output is correct
54 Correct 78 ms 3164 KB Output is correct
55 Correct 26 ms 2896 KB Output is correct
56 Correct 37 ms 3164 KB Output is correct
57 Correct 26 ms 2904 KB Output is correct
58 Correct 323 ms 3160 KB Output is correct
59 Correct 347 ms 3480 KB Output is correct
60 Correct 319 ms 3160 KB Output is correct
61 Correct 360 ms 3480 KB Output is correct
62 Correct 316 ms 3248 KB Output is correct
63 Correct 350 ms 3416 KB Output is correct
64 Correct 319 ms 3164 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 348 ms 3400 KB Output is correct
68 Correct 346 ms 5456 KB Output is correct
69 Correct 300 ms 4696 KB Output is correct
70 Correct 339 ms 5204 KB Output is correct
71 Correct 336 ms 5204 KB Output is correct
72 Correct 326 ms 5200 KB Output is correct
73 Correct 321 ms 4948 KB Output is correct
74 Correct 347 ms 5468 KB Output is correct
75 Correct 328 ms 5104 KB Output is correct
76 Correct 349 ms 5556 KB Output is correct
77 Correct 66 ms 5812 KB Output is correct
78 Correct 30 ms 5204 KB Output is correct
79 Correct 47 ms 4956 KB Output is correct
80 Correct 49 ms 5208 KB Output is correct
81 Correct 45 ms 4948 KB Output is correct
82 Correct 44 ms 5464 KB Output is correct
83 Correct 33 ms 5200 KB Output is correct
84 Correct 212 ms 5724 KB Output is correct
85 Correct 366 ms 5712 KB Output is correct
86 Correct 1 ms 344 KB Output is correct
87 Correct 1 ms 348 KB Output is correct
88 Correct 373 ms 5980 KB Output is correct
89 Correct 70 ms 1412 KB Output is correct
90 Correct 1 ms 344 KB Output is correct