oj.uz

Submission #1110795

# Submission time Handle Problem Language Result Execution time Memory
1110795 2024-11-10T13:48:13 Z coolsentenceidontremember Hard route (IZhO17_road) C++17
100 / 100
 491 ms 124488 KB 
/*


;;;:::::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;;;;;;;:::::::::::::::::::::;;;;;;;;;;:::::::::::::;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;++++
::::::::::::::::;S*.......+%:,....,*%,......,S+,,:;*%+:,..........,:*S##+.......+#SS:.......?@*.............%S:....;%;.....,%?%?,.....*%+?*:,,........,,:;?*,+S,......,S#?.......;S;....................
:::;;;::::::::::+S*.....,.+S;,,...,*%,......:S?;+*%S;......:?*,......+#@%,......:##S......,,S@*.......,,,,::%#?;,..,*%:.,...*#S;...,.;S*%*,.....,*%;......,%?*S,......,S#?.......;S;....................
::::::::::::::::+S*.......+S;,,...,*%,......:#%???#?.......+@@;......,%@#;......,%@*.......;##*.......+#%%%%%%%?+,..,?%,.,..:#S,....:S?*%:.,....,S@?.,.....+S?S,......,S#?.......;S;....................
;;;;;;;;:::;;;::+S*.......+S;,....,*%,......:#S??%#?.......+@#:.......%##*,.....,%@+......,?##*.......*#S%%%???%%*:,.:%*...,,?+....,%?:*%,......,S#*.,.....+S?S,......,S#?.......;S;....................
;;;;;;;;;;;;;;::+S*.......+S;,...,,?S,......:#S%%%#?.......+@@:.......%##S,......*#:......,SS#*......,:;;;;+S%??%%?:.,+S;...,,,....*S:,*S,......,S#*.......+S?S,......,S#?.......;S;....................
;;;;;;;;;;;;;;::+S*.......+S;,,,,,:?S,......:#S%%%#?.......+@@:.......%#S#;......;#:......;#S#*............:#%????%%;,,*S:.,......;S+,,*S,......,S#*.......+S?S,......,S#?,......;S;....................
;;;;;;;;;;;;;;::+S*.......+S;,,,:;+%S,......:#S%%%#?.......+@@:.......%#%#?......:*,......?#%#*.......:++++*S??????%%+,:%?,......:%*,.,*%,......,S#*.......+S?S,......,S@?.......;S;....................
;;;;;;;;;;;;;;::+S*.......+S;::;+*?SS,......:#S??%#?.......+@@:.......%#?%S:.....,+......:SS%#*......,*#%???****????%%*:;S;......*S:..,*S,......,S#*.......+S?S,......,S@?.......;S;....................
;;;;;;;;;;;;;;::+S*.......+S;:+???%#S,......:##%%%#?...,...+@@;......,%#?%#+.....,,......+#??#*.......+#%%%??****????%%?*S;......*%:..,*%,......,#@*.......+S?S,......,S@?.......;S;....................
;;;;;;;;;;;;;;::+S*.......+S*?%%?%%#S,.....,,:;::+#S:..,,.,:%%:..,,..;#%??#%,............?#??#*.......,:;;;;*S?****????%S#;......*%:...;S+......,?S+.,....,%?+%+.....,,?S+,.....,*%:....................
;;;;;;;;;;;;;;:;+S*.......+#%%%%%%S#S,...........:##%;,............,+S%?*?%#;...........:#S??#*.............+#?*****????S#;......*S:...,+%*:,...........,:??:,+%+:,...........,:*?;,....................
;;;;;;;;;::;;;::+%?;;;;;;;?#S%%%SSS#S;;;;;;;;;;;;*S%%SS?+;;::::;;*?%S?*****S?;;;;;;;;;;;*S%??%?;;;;;;;;;;;;;*S?******???%S*;;;;;;*?,....,:+**+;;:::::;+***;,..,:+**++;;::::;;+**;,......................
:::::;;;;:;;;;:;;;+++++*%SSS%%%SSSSS%S##SS%%%%%SS%??%%%%%SSSSS%%%%???****+**??????%%???%?++*?**????%%%***????*********???%%SS?+;;:,,.......,,:;++++++;;:,........,,:;;++++++;:,,........................
;;;;;;;;;::;;;;;;::,::;?%%%S%SSSSSS%SSSS%?????%%???%%???%%%%%%??%??%%*****??****+++*+++*?+++*?*++++*?*+;;;++***********??????*;,........................................................................
;;;;;;;;;;;;;;;;:::::+?%SSSSSSSSSS%SS#SS%%???%S%?%S%%?%%%%%%???%?*?%%***????????**???***??***??*****???*++;+**************+;:;++:,......................................................................
;;:;;;;;;;;;;;;:::;;+%SSSSSSSSSSSSS###SSS%%%%S%?%SS%%%%%%%???**??**%%?*???%?????????%?**?%?**?%?*?***%?***+;+*******++;:,,,,::;;+;,.....................................................................
;;;;;;;;;;;;;;:::++*%SSSSSSSSS##SS#S#SSSS%%%S%%%SS%%%%%%????*:++?**%%?????%%?%%%%%??%????%????%%????*?%?***;;++;;;::,,,..,,,,::;;+;:....................................................................
::;;;;;;;;;;;::;+*?%SSSSSS######S####SSSS%%SS%%%%%%%SS%??%?+,,*;?**?%%????%%?%%%%%%%%%???%????%%??????S%?**+:,,,,........,.,,,:::;++:,..................................................................
;;;;;;;;;;;::;+*?%%S###SS############SSSS%%#S%%%%SSSS%%?*+;:::*;????%%???%%%%?%%%%%%%%%??%????%%%?????%%???*;,.............,,,,,::;;+;,.................................................................
;;;;;;;;;;::+*?%%SS##################SSSS%S#S%%%SSSS%?*;:,.,,,*;+%%%%S%???%%%%%%%%%%%%%??%%???%%%%????%S%??*;:...............,,,,::;;++:,...............................................................
;;;;;;;;;;+++*SS%SS#################SSSSSSS#S%%%SSSS?*+;;::,,,:;:*S%SSS%??%%%S%?%%%?%%S%?%%????%S%????%S%??*;:...............,,,,,:::;++:,,,............................................................
;;;;;;;+**+;+?SS%SS#################SSSSSSS#S%%%S#S%S###SSS?+;::::*%SSSS%%%%%%S%?%%??%%%?%%????%S%????%S%%?*;:................,,,,,:::;;+;,.............................................................
++++++******?S##SS##################SSSSSSS#S%%SSS+;S#SS######%*;::;?SSSS%%%%%%S%%%%??%%%%%????%SS????SS%%?*;:,.................,,,,,::;;++:,...........................................................
******??????%S##SS##################SS#SSSS#SS%SS%:;%?%SSS#SS?*?%+:::+%%SSS%SS%%SS%%%%%%%%%????%SS???%SSS%?*;:...................,,,,,:::;++;,..........................................................
?????????????S##SS##################SS#SSSS##S%SS?::++;++?%?;:::+;:,,,:+??%SSSS%%%SSSS%%S%%???%SSS???%SS%??+;:....................,,,,,:::;;+;:.........................................................
%????????????%##SS###################S#SSSS##S%SS?;::;++;;::,:::,:,,,,,,;+++??%SS%?%SSS%SS%???%S#S%??SSS%?*:,,......................,,,,,::;;++:,.......................................................
%%%%%%%%?????%S######################SS#SSS##SSSS?;:::::::::,:,,,,,,,,,,,:;;+?SS##S%%SSS%%%??%S##S??%SSS%?+,,........................,,,,,::;;++;,......................................................
????%%SSSSSSSSSS#####################SS#SSSS#SSSS%;::::::::::::::,,,,,,,,,,+%S%SSS%+:;?#SS%?%S###%??S%SS%?;,,.........................,,,,,:::;;+;:.....................................................
????????%%%SSSS#######################SSSSSSSSSSSS*:::::::::::::::,,:::::::++++++;:::;***%%?%S##S%%%%*S%%?:,..........................,,,,,,:::;;++:,...................................................
?????????????%%%SSSSS##################SSSSSSSSSSSS;,::::::::::::::::::::::;;;:::,,,:+*%SS%%S###S%%%*%?%?:,..............................,,,,,:::;+++:..................................................
????????????????%%?%%SSSSS#SS##########SS#SSSS#SSS%*:::::::::::::::::::::::::::;:::;*S##S%%S####S%%?%*+;,.................................,,,,::::;*%?;,,...............................................
??????????????????%??%%%%%%%%#######%%####SSSS###SS*+;:::::::::::::::::::::::::::;?S####SS######SS%S*,,...................................,,,,,,:;*?%%%+,,,.............................................
%%%%%%%%%%%?%??%???%%?%%%%%?%S#S%%%%%?S####SSS%S###S+:;::::::::::::::::::::::::;?S#####%S#######S?*;,......................................,,,,;+*???%%%?;,.............................................
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%S#S%???%??%####SSS%S###S+::::::::::::::::::::;;+?%######S?%#####S%+:,.......................................,,::++*??????%%%%+,............................................
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%S%%%%%%%%%S#####SS%SS##S*;:::::::;;;;;++**?%SS########%*%#####?:.....................................,,,,::;++******?????%%%%*:,,.........................................
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%SSS#####S%%%S##S%*++**?++**%SSS############S?*%####?:,..................................,,,::;;++***********??????%%%%;,.........................................
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%SSSSSSSSSS%%S###S%%??%S#S%?%%%%%*??*SSSSS##########?+?###?:............................,,,,,,:::;++++*****************??????%%%*:........................................
%%%%%%??%???????%%%%%%%%SSS########SSSSSSS%SS###S%%???%SS%???%%%+%%?S%%%#########?+%#S?:,.....................,,,,,,:::;;;+++++++********************???????%%%?;,,.....................................
%??????????????%%%SSS#################SSSSSSS####S%%%%%%SS%%%%%%?*%????%########%*%?;:,.......,,,,,,,,,,,::::;;;;+++++++++++++++++*+++*****************??????%%%%+,.....................................
????????????%%SSSSSSSSS%%%%%%%%%%%SSSS###SSSSS#S###SS%%%%S#S%??*?**?%??S####S%SS??*;;;;;;;;;;;;;;;;+++++++++++++++++++++++++++++++++++++****************???????%%%?;,...................................
???????%%%%SSSSS%%%%%%%%%%%%%%%%%%%%%%%SS%???%%%?%%S%?****%#%+;+*?*??%?%###S?*?********************+*++++++++++++++++++++++++++++++++++++****************????????%%%+,..................................
?%%%%%SSSSSSSS%%????%%%%%%%%%%%%%%%%%%%%%*++++++++*?%%?*+;+%#%+++??*???%##S???*?**************+++++++++++++++++++++++++++++++++++++++++****+***************???????%%%*:.................................
+*?%%SSSSSSS%%%?????%%%%%%%%%%%%%%%%%%%%?+;;;;;;+++++**???**%#*;;+%***?S##%???*?**************+++++++++++++++++++++++++++++++++++++++++****+***************????????%%%?;,...............................
;++*%SS%%S%%???%???????%%%%%%%%%%%%%%%%%?+;;;;;:;;;;;;;;;;;;+S*;:;??*+?#S%??????**************++++++++++++++++++++++++++++++++++++++++++++*+*****************??????%%%%%*:,.............................
;+*%S%%%%%%%????%%%%%%%%%%%%%%%%%%%%%%%%?+;;;;;;;;:::::;;;;;;?*;++*?*+*#S???????**************++++++++++++++++++++++++++++++++++++++++++++*+******************????????%%%?;,...................,,,,,,:::
;+%%%%%%?????????????%%%%%%SSS%%%%%%%%%%%*;;;;;;;;;;;::::::::+;;;;+??**S%???????***************+++++++++++++++++++++++++++++++++++++++++++*+********************???????%%%?;,........,,,,,,:::;;++++++**
:?%%%%%%%%%%?????????%%%%%%%%%%SSSSS%%%?%?+;;;:;;;;;;;::::::;;:::::;?*+%S%???????**************++*+++++++++++++++++++++++++++++++++++++++++++*++******************????????*++:,,:::;;;+++++*************
;%%%%%%%%%??????**????????%%%%%%%%%%SSSSSS*++;;;:;;;+;;:::::::::::::;?*?%%??????***************++++++++++++++++++++++++++++++++++++++++++++++*++*******************??????+;;+++++*************+*********
+%%%%%%%%%%???********???????????%%%%%%%%S%*+;++;;:;;+;::::::::::::::+??%%?????******************++*++++++++++++++++++++++++++++++++++++++++++++*********************??*;::;;;+*************++++********
?%%%%%%%%%%?*******?????%%%%%?***??????%%%%%*;;;;;;;;;;;::::::::::::::*?%%?????******************++*++++++++++++++++++++++++++++++++++++++++++++**********************;:,:::;;;++***********+*++********
%%%%%%%%%%%?********??????%SSSS%??****?????%%?+;;;;;;;;;::::::::::::::;?%%?????********************++++++++++++++++++++++++++++++++++++++++++++++*****************++:,,,,,::::;;++**********************
%%%%%%%%%%%%?*******????????%SS#S%%???***?*?%%*+++;;;;;;::::::::::::::;?%%?????********************+++++++++++++++++++++++++++++++++++++++++++++***************++;:,,,,,,,,,:::;;++*********************
%%%??%%S%%%%??*****????????????%S##SS%%?????%S%+++;;+;;:::::::::::::::;*%%?????********************+++++++++++++++++++++++++++++++++++++++++++++***********++;:,,,...,,,,,,,,:::;;;++*******************
%%%???%SS%%%%??****??????????????%S###SS%%?%SS%+++;;;;;::::::::;;;;;::;*%%???????*****************+**++++++++++++++++++++++++++++++++++++++++++++******++;::,,..........,,,,,,,:::;;;+******************
??????%SS%%%%%??*****???????????????%S###S%SSS%+++;+++;:::::::::;;;;::;*%%??????********************++++++++++++++++++++++++++++++++++++++++++*+**+;::::,,,,,,,,........,,,,,,,::::;;;++****************
???????%SS%%%%%???***??????????????????%S####S?+;++++;::::::::::;;;;::;*%%?????***********************++++++++++++++++++++++++++****++++++********?*;:..,.,,,,,,,,,.......,,,,,,,::::;;++**********++***
????????%SS%%%%%??****????????????????????%SSS?++*++;:::::::::::;;;;::;;+**?????***********************++++++++++++++++++++++*?????%??*************???;,,.,,....,,,,,,,,....,,,,,,,:::;;;++********+++*+
?????????SSS%%%%%??*****?????????????????????%%?*+++;::::::::::;;;;;::;;;;:;++*******************+++++*+++++++++++***********?%%%%??%%?**************??+,,,.....,,,,,,:,,...,,,,,,,,::::;;++*?*+***++++*
?????????%SSS%%%%%???******????????????????????%?++;:::::::::::::;;;::;;;;:::,,,::;;++++++***+*****+****+++++****************?%S%%????%?*************???+,......,,,,,,,,,,,,,..,,,,,,::::;;;+??**+*++++*
%?????????%SSS%%%%%%???*******????????????????????+:::::::::::::::;;::;;;;:::,,,,,,,,,,,,,,,:::::::::::::;+**??***************%S%%%????%??????????????%??;....,,,,,,,,,,,:::::,,,,,,,,,:::;;+?%?***+**++
%%???????*?%S#S%%%%%%%??***************????????????+::;;;;;::::::::::::;;;:::,,,,,,.,,..............,:;+***?*****************?%S%%%?????%%%%????????????%*,.,,,,:::::::,:::;;;;:,,,,,,,,::::+?%%??*+*+++
%%%??????**?S##S%%%%%%%???*************************?*+;;;++;:::::::::::;;;:::,,,,,,............,,:;+*???*?******************?%%%%%%?????%%%%?*****???????*:,,,,,,,,,:::::::::;;;:,,,,,,,,,::*??%%%?***++
?%%%????**?%%SS#S%%%%%%%????***********************???*;;+;;;::;;;;;++;;+;:::,,,,,,.........,,;+*????????%%%%????**********?%%%%%??***?%%%%%?*******?????*;;;:::,,,,::::;;:::::::,,,.,,,,,:+?????%%?**++
??%%%????%??*?SS#SS%%%%%%%???**********************???%*++;;;;+++++++++++++;:,,,,,,.......,:+*????????%%%%%%%%%%%%????????%%%????****??%%%%%%?******??*+;:,,,......,,,,,:::::,,...,.....,;**?????%%%?***
S??%%%%%%??????SS##S%%%%%%%?????******************??%SSS%??*+++++++++++;;;++:,,,,,,.....,;*???????????????%%%%%%%%%%%%%??%????******???%%%%%%????*+;:,,..............................,,:+*??????????%?*+
%%??%SS%????????S###S%%%%%%%????***************?%%SSSS%%%%?????*++++++;:;++**+;,,,,..,:*??????????????????%%%%%??%%%%%%??????******?%????%%%?+;:,,.................................,,:+********???????*+
%??*%%%%%????????%S##S%%%%%%%???***********??%%S%%%%%???%SS%?***?**+++;+**???%%?*+::;*%%?????????????????%%%%%%%%%%%%?????????****????????*;,....................................,:;+***********??????*+
;;*?????%%%???????%S##S%%%%%%%?******?????%%%%?????????%%##S??***?????????%%??%%SSSSS%??????????????????%%%%%%%%%%%%%??????????**?????%??+,..................................,,,:;+****************??**+
;;+??????%%%%??????%S##SS%%%%%%?***??????????????????%%%%###%???***?????%SS%?%%SS#S%????????????????????%%%%%%%?????%??????????????%??*;:,,...............................,,,:;+**********************++
;;;**??????%%%%?????%S###S%%%%%????????????????????%%%%%%###S%????????%SSS%??%S#S%?????????????????????%%%%%%%?????????????????????*;:,..............................,,,,:;++************************+++
;;;++??????%%%S%??????%S##S%%%%%%%%%?????????%??%%%%%%%%S###%%%%%%%?%S###S%%%SSS%?????????????????????%%%%%%%%???????????????%%%?;,,..............................,,::;+++***************************+++
;;+++**?????%%%SS%?????%S##SS%%%%%%%%?%%%%%%%%%%%%%%%%%%S##S%%%%%%%%S####SSSSS%???????%%%????????????%%%%%%%?????????????%%%?*+:,...........................,,,,:;;+++***++************************+++++
+++++***???%%%%%%SS%%????%S##S%%%%%%%??%%%%%%%%%%%%%%%%%S##%%%%%%%%S####SSS%%????????%SS%??????????%%%%%%%%%?????????%%%??*;,,........................,,,,::;;++++***+++*+++*********************+++++++
****?*?*??%?%%%%%%SSS%%???%S###S%%%%%%??%%%%%%%%%%%%%%%S###%%%%%%%S####SS%%?????????%SSS%??????????%%%%%%%??????%%???*+;:,.....................,,,,,::;;++++++++++++++++****+******************+++++++++
***++++;;+*??%%%%%%SSSSS%???%S###S%%%%%%?%%%%%%%%%%%%%%S##S%%%%%%S####S%???????????%SSS%%?????????%%%%%%%????%?*+;:,,.................,,,,,:::;;;++++++++++++++++++++++++++*+++*************++++++++*+++
;;;::;;;;;;+*??%%%%%%SSSSS%???S###S%%%%%%%%%%%%%%%%%%%%S##S%%%%%S###S%????????????%SSS%%%????????%%%%%??????*+:,...,,,,,,,,,,,,:::::;;;;+++++++++++++++++++++++++++++++++++*++***+*******+++++++++++++++
:::;;;;;;;+++**???%%%%%%SSSS%%?%S###S%%%%%%?%%%%%%%%%%%##S%%%%%%S##S%????????????%SSS%%%????????%%%%%????*+;;;;;;;;;;;;;;+++++++++++++++++++++++++++++++++++++++++++++++++++++***+++++++++++++++++++++++
:::;;;++****+++++*???%%%%%%SSSS%%%S###S%%%%%%%%%%%%%%%S##S%%%%%S#S%????????????%%SSS%%%????????%?%%%%??**++*****++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
;;++*****+++;;+++++**???%%%%SSS#SS%SS##SS%%%%%%%%%%%%%S#S%%%%%%SS%????????????%SSS%%%%?????????%%???**+****++*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+***++++;;;;;;;++++++++***??%%%SS##SS####S%%%%%%%%%%%SSSS%%%%%%%?????????????%%%%%%%????????????***++++*****++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++;;;++;;;;;;;;+++++++++++++***??%%SS######S%%%%%%%%%SS%%%%%%%%????????????%%%%%%%??????????*****************+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
;;;;;;+++;;;;;+++++++++*************??%%SS###S%%%%%%%%%%%%%%%%???????????%%%%%%%%???????*******************+**++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++;;++++++++++
;;;;;;;++++;;++++++++++++++++***********??%SS##SS%%%%%%%%%%%%??????%%%%%%%%%%%%??%%%%??******************++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++;;;;+;+++++++++++
;;;;;;;;;;+++++++++++++++++;;;;;++***?%%%%%%%%S%%%%%%%%%%%%%%%%%%%%%%%%%%?%??????????????????********************+*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++;+;+;;++++++++++++++
;;;+++;;;;;+++++++++++++++*****??%%%%%???****++++++**??%%%%%%%%%%%%%%%%???**++;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++;;;;+++++++++++++++++++
;;;;;;;;;;;;;++++++++++**????%%%??***+++;;;;;;;;;::;;;;;+++****????***++;;;;;:::;;;;::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;;;;+;;;+++++++++++++++++++++++++++++++++;;;;;;;;;++++++++++++++++++
;;;;;;++++++;;;;+++**?????%??*++;;;;:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;+++++++++++++++++++;;;;;;;;;;;;;;;++++;+++++++++++++
;++++++++++++++**?????%??*+;;;;:::::::::::::::::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,:::::::::::::::::::::;;;;++++++++;;;;;;;;;;;;;;;;;;+;;;;++++++++++*+***
;;;++++;;+++*??????%%?*+;;::::::::::,,:,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,::::::::::::::::::::::::::::;;;;;+++++;;;;;;;;;;;;;;;+++++*********???
+++++;;+**??????%%?*;;:::::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,::::::::::::::::::::::::::::::::::::::;;;;+++;+++++++*****?????????????
++;++*???????%%?*;:::::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,:::::::::::::::::::::::::::::::::::::::::::::;+****??????????????????????
;;+*??????%%?*+;::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,::::::::::::::::::::::::::::::::::::::::::::::::::;*????????????????????????
+???????%%?+::::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,::::::::::::::::::::::::::::::::::::::::::::::::::::::::;*??????????????????????
??????%%*;::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,::,,,:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::,,,,,,,:::::::::+*?????????????*****++
?%??%?+;:::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;;;;:::,,,,,,,,,,:::::::::;+??****++;;;::,,,,,,
%?%?+::::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;::;;;;;;;;;;;;;;;++;;;;;;;;;::::,,,,,,,,,,,,,,,,,,,::::::::+:,,,,,............
?%*;:::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;;;;;+++++++++;;;:::::,,,,,,,,,,,,,,,,,,,,,,,,,,,::::::::;,.................
%+::::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;++++++++++;;;::::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,::::::::;,.................
*:::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;+++++++++++;;;:::::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,::::::;:..................
:::,,,,,,,,,,,:,,,,,,,,,,,,,,,,,,::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;;;+++++++****++;::::::::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,:::::;;,..................
:::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;;;;;;;;+++++++****++;;::::::,::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,:::;;,...................
::,,,,,,,,,,,,,,,:,,,,,:,,,,:::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;;;;;;;;;;;+++++++*****++;::::::::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,::::,,....................
,,,,,,,,,,,,,,,,,,,,,::::::,,:,:::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;;;;;;;;;;++++++********+;:::::::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,:::;;:,......................
:::::,,,::::::,,:::::,::::::::::::::::::::::::::::::::::::;;;;;:::;;;;;;;;;;;;;;;;;;;;;;;;;;;+++++*****???***+;::::::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,:,,,,,:::::;;;;:,,......................
******++******?******+;:::+**?****?**;::::::;**?????**+***????*****???????*??????????????*+*????%%%%??%?????***+:,,,,,:+**********+::+******+:,,,:+***************++******????*****+++++********++:,....
,,,,,*##;,,,,,S+,,,,;S*:+??;:,,,,,,:+??+:::;?%:,,,,,,%#S:,,,,,,?#S,,,,,,,,,S#;,,,,,,,,::;?SS%,,,,,*S?S*,,,,,,,;S+:,,,,+S;,,,,,,,::;?%S:,,,,+S;,,:*S:,,,,,,,?#:,,,:S#?,,,,?@;,,,,,,,,*@?,,,,,,,,::;?*:...
,....;@S,....;#;....:S*;%?,..,,%?,...,%%;::;?S,......+@?.......?@S,....:+++S#;....:?+....,S@S,....*S%S:..,:,..,%%:,,,,+S;....:?:...:##:....;S+,,;%?,..,:,..;@%,..,%@;...;##;....,++;*#?.....*?,...,%*,..
+....:#?,....*@;....:S*+S+....,#S.....*S+::;?S,...,,.:S;.,:....?@S,....*@S%%#;....:@%.....?@%,....*SS?,..,;:.,.+S+,,,,+S;....;#;...,##:....;S+,:+S;...,+,..,%@*...+%,..:%%S;....:#S*+%?.....%@,....%?,..
%,...,S*....,S@;....:S*+S*....,SS+++++??;::;?S,...+;.,+,.:+....?@S,....,;:+##;....:#?.....?@S,....*#S+..,,%*.,,,%?:,,,+S;....:+,...:##:....;S+::?%,...;S:,,.+##+..,:,.,%?+S;....,:::%#?.....;;,,,:+%;,..
#;....+;....;##;....:S*+S*....,SS%%%%%*+;::;?S,...+*..,,.+*....?@S,...,:;:+##;....:#?.....?@S,....*#S:...,S?,.,.+S;,,,+#;....,,::;+?SS:....;S+:;S*....+@;.,.,%SS:.....*%:;S;....,:::%#?.....;;,,,;?%;...
#*....;:....*##;....:#*+S+....,SS,,,,,*%;;:;?S,...+%,...,%*....?@S,....*#?*?S;....:@?.....?@%,....*@?,...,++,.,.,S*:,,+S;....:S%**+;*S:....;#*;*S;....;*:..,.*SS*....:S+,;S;....;#%+;%?.....%#,...,%?,..
SS,...,,...,SS#;....:??*#*....,S%.....?%;:;;%S,...+#;.,.:#*.,..?@S,....+%?*?#;.,..:S*.....?#%,....*@+...,,::,....?%:,,+S;....:S+:,,:*S:....;%?*S%,...,:::,...:##?....:S+,;S;....:??*+S?.....%#,....%?,..
%#+........+#S#;.......,S#+,...::..,:*S?+++*SS,...+@*...;@*....?@%,........+@;....,,,....:%S%,....*S,....*##+....;S+,,+S;....:S+::::*S:.......,#*....,S#%,...,?@?....:S;.;S;........:#?.....%#,....%?,..
%SS********%#S#?********S##S?*++++*?SS%?????%S****?#S***S#%****%SS*********?#?*********??%?*%*****%S*****%%%?*****%*;;+%?****?%*;+;+*S?********#?****?S%%*****%#S*****%+:;%?*********S%*****%S*****%*:::
*/



#include "bits/stdc++.h"
#define ll long long
#define ld long double
#define ff first
#define ss second
#define pii pair<int, int>
#define mp make_pair

using namespace std;

void setIO(string s = ""){
 ios_base::sync_with_stdio(false);
 cin.tie(nullptr);
 cout.tie(nullptr);
 if (!s.empty()){
	freopen((s+".in").c_str(), "r", stdin);
	freopen((s+".out").c_str(), "w", stdout);
	}
}



struct chash {
	const double PI = acos(-1);
	const uint64_t C = (2e18 * PI)+71;
	const uint32_t random = chrono::steady_clock::now().time_since_epoch().count();
	size_t operator()(ll x) const {
		return __builtin_bswap64((x^random)*C);
	} 
};

const int N = 5e5;
vector<int> adj[N];
pii max_path[N];
pair<ll, ll> ans;
void dfs1(int u, int p){
	max_path[u] = {0, 1};
	for (const int &v : adj[u]){
		if (v == p) continue;
		dfs1(v, u);
		if (max_path[v].ff+1 > max_path[u].ff){
			max_path[u] = max_path[v];
			max_path[u].ff++;
		} else if (max_path[u].ff == max_path[v].ff+1) max_path[u].ss += max_path[v].ss;
	}
}


void dfs2(int u, int p, pair<ll, ll> pdis){
	vector<pii> path;
	if (u || (int)adj[u].size() == 1) path.push_back(pdis);
	for (const int &v : adj[u]){
		if (v != p) path.push_back({max_path[v].ff+1, max_path[v].ss});
	}
	sort(path.begin(), path.end(), greater<>());
	if (path.size() >= 3){
		int a = path[0].ff, b = path[1].ff, c = path[2].ff;
		ll cur_hard = 1LL*a*(b+c);
		ll cur_cnt = 0;
		ll same = 0;
		for (const pii &p : path){
			if (p.ff == c) same += p.ss;
		}
		if (a == b && a == c){
			cur_cnt = same*same;
			for (const pii &p : path) if (p.ff == a) cur_cnt -= 1LL*p.ss*p.ss;
			cur_cnt /= 2;
		} else if (a == b){
			cur_cnt = 1LL*same*(path[0].ss + path[1].ss);
		} else if (b == c){
			cur_cnt = same*same;
			for (const pii &p : path) if (p.ff == b) cur_cnt -= 1LL*p.ss*p.ss;
			cur_cnt /= 2;
		} else {
			cur_cnt = 1LL*path[1].ss*same;
		}
		if (ans.ff < cur_hard){
			ans = mp(cur_hard, cur_cnt);
		} else if (ans.ff == cur_hard) ans.ss += cur_cnt;
	}
	pair<ll, ll> best = {0, 0}, second_best = {0, 0};
	for (const pii &p : path){
		if (p.ff + 1 > best.ff){
			second_best = best;
			best = {p.ff + 1, p.ss};
		} else if (p.ff + 1 == best.ff){
			best.ss += p.ss;
		} else if (p.ff + 1 > second_best.ff){
			second_best = {p.ff+1, p.ss};
		} else if (p.ff + 1 == second_best.ff) second_best.ss += p.ss;
	}
	
	for (const int &v : adj[u]){
		if (v == p) continue;
		if (max_path[v].ff + 2 == best.ff){
			if (max_path[v].ss == best.ss) dfs2(v, u, second_best);
			else dfs2(v, u, mp(best.ff, best.ss - max_path[v].ss));
		} else dfs2(v, u, best);
	}
}

int main(){
	setIO();
    int n;
    cin >> n;
    for (int i = 1; i < n; i++){
    	int u, v;
    	cin >> u >> v;
    	adj[--u].push_back(--v);
    	adj[v].push_back(u);
	}
	ans = {0, 1};
	dfs1(0, 0);
	pair<ll, ll> start = {0, 1};
	dfs2(0, 0, start);
	cout << ans.ff << ' ' << ans.ss;
}

Compilation message

road.cpp: In function 'void setIO(std::string)':
road.cpp:138:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  138 |  freopen((s+".in").c_str(), "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
road.cpp:139:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  139 |  freopen((s+".out").c_str(), "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 13648 KB Output is correct
2 Correct 3 ms 13648 KB Output is correct
3 Correct 3 ms 13648 KB Output is correct
4 Correct 4 ms 13648 KB Output is correct
5 Correct 4 ms 13812 KB Output is correct
6 Correct 3 ms 13648 KB Output is correct
7 Correct 3 ms 13648 KB Output is correct
8 Correct 4 ms 13648 KB Output is correct
9 Correct 4 ms 13904 KB Output is correct
10 Correct 4 ms 13660 KB Output is correct
11 Correct 4 ms 13648 KB Output is correct
12 Correct 4 ms 13648 KB Output is correct
13 Correct 3 ms 13648 KB Output is correct
14 Correct 4 ms 13760 KB Output is correct
15 Correct 3 ms 13816 KB Output is correct
16 Correct 4 ms 13648 KB Output is correct
17 Correct 3 ms 13904 KB Output is correct
18 Correct 3 ms 13648 KB Output is correct
19 Correct 4 ms 13888 KB Output is correct
20 Correct 3 ms 13912 KB Output is correct
21 Correct 3 ms 13648 KB Output is correct
22 Correct 4 ms 13648 KB Output is correct
23 Correct 4 ms 13888 KB Output is correct
24 Correct 4 ms 13648 KB Output is correct

Subtask #2
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 13648 KB Output is correct
2 Correct 3 ms 13648 KB Output is correct
3 Correct 3 ms 13648 KB Output is correct
4 Correct 4 ms 13648 KB Output is correct
5 Correct 4 ms 13812 KB Output is correct
6 Correct 3 ms 13648 KB Output is correct
7 Correct 3 ms 13648 KB Output is correct
8 Correct 4 ms 13648 KB Output is correct
9 Correct 4 ms 13904 KB Output is correct
10 Correct 4 ms 13660 KB Output is correct
11 Correct 4 ms 13648 KB Output is correct
12 Correct 4 ms 13648 KB Output is correct
13 Correct 3 ms 13648 KB Output is correct
14 Correct 4 ms 13760 KB Output is correct
15 Correct 3 ms 13816 KB Output is correct
16 Correct 4 ms 13648 KB Output is correct
17 Correct 3 ms 13904 KB Output is correct
18 Correct 3 ms 13648 KB Output is correct
19 Correct 4 ms 13888 KB Output is correct
20 Correct 3 ms 13912 KB Output is correct
21 Correct 3 ms 13648 KB Output is correct
22 Correct 4 ms 13648 KB Output is correct
23 Correct 4 ms 13888 KB Output is correct
24 Correct 4 ms 13648 KB Output is correct
25 Correct 8 ms 14160 KB Output is correct
26 Correct 5 ms 14416 KB Output is correct
27 Correct 5 ms 14416 KB Output is correct
28 Correct 6 ms 14412 KB Output is correct
29 Correct 5 ms 14416 KB Output is correct
30 Correct 6 ms 14416 KB Output is correct
31 Correct 5 ms 14416 KB Output is correct
32 Correct 6 ms 14416 KB Output is correct
33 Correct 6 ms 14416 KB Output is correct
34 Correct 6 ms 14416 KB Output is correct
35 Correct 6 ms 14416 KB Output is correct
36 Correct 5 ms 14592 KB Output is correct
37 Correct 5 ms 14420 KB Output is correct
38 Correct 7 ms 14940 KB Output is correct
39 Correct 6 ms 14416 KB Output is correct
40 Correct 6 ms 14160 KB Output is correct
41 Correct 5 ms 14160 KB Output is correct
42 Correct 5 ms 14160 KB Output is correct
43 Correct 5 ms 13904 KB Output is correct
44 Correct 5 ms 13904 KB Output is correct
45 Correct 5 ms 13904 KB Output is correct
46 Correct 5 ms 13904 KB Output is correct
47 Correct 5 ms 14160 KB Output is correct
48 Correct 5 ms 14328 KB Output is correct

Subtask #3
48.0 / 48.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 13648 KB Output is correct
2 Correct 3 ms 13648 KB Output is correct
3 Correct 3 ms 13648 KB Output is correct
4 Correct 4 ms 13648 KB Output is correct
5 Correct 4 ms 13812 KB Output is correct
6 Correct 3 ms 13648 KB Output is correct
7 Correct 3 ms 13648 KB Output is correct
8 Correct 4 ms 13648 KB Output is correct
9 Correct 4 ms 13904 KB Output is correct
10 Correct 4 ms 13660 KB Output is correct
11 Correct 4 ms 13648 KB Output is correct
12 Correct 4 ms 13648 KB Output is correct
13 Correct 3 ms 13648 KB Output is correct
14 Correct 4 ms 13760 KB Output is correct
15 Correct 3 ms 13816 KB Output is correct
16 Correct 4 ms 13648 KB Output is correct
17 Correct 3 ms 13904 KB Output is correct
18 Correct 3 ms 13648 KB Output is correct
19 Correct 4 ms 13888 KB Output is correct
20 Correct 3 ms 13912 KB Output is correct
21 Correct 3 ms 13648 KB Output is correct
22 Correct 4 ms 13648 KB Output is correct
23 Correct 4 ms 13888 KB Output is correct
24 Correct 4 ms 13648 KB Output is correct
25 Correct 8 ms 14160 KB Output is correct
26 Correct 5 ms 14416 KB Output is correct
27 Correct 5 ms 14416 KB Output is correct
28 Correct 6 ms 14412 KB Output is correct
29 Correct 5 ms 14416 KB Output is correct
30 Correct 6 ms 14416 KB Output is correct
31 Correct 5 ms 14416 KB Output is correct
32 Correct 6 ms 14416 KB Output is correct
33 Correct 6 ms 14416 KB Output is correct
34 Correct 6 ms 14416 KB Output is correct
35 Correct 6 ms 14416 KB Output is correct
36 Correct 5 ms 14592 KB Output is correct
37 Correct 5 ms 14420 KB Output is correct
38 Correct 7 ms 14940 KB Output is correct
39 Correct 6 ms 14416 KB Output is correct
40 Correct 6 ms 14160 KB Output is correct
41 Correct 5 ms 14160 KB Output is correct
42 Correct 5 ms 14160 KB Output is correct
43 Correct 5 ms 13904 KB Output is correct
44 Correct 5 ms 13904 KB Output is correct
45 Correct 5 ms 13904 KB Output is correct
46 Correct 5 ms 13904 KB Output is correct
47 Correct 5 ms 14160 KB Output is correct
48 Correct 5 ms 14328 KB Output is correct
49 Correct 311 ms 70984 KB Output is correct
50 Correct 345 ms 77052 KB Output is correct
51 Correct 385 ms 82100 KB Output is correct
52 Correct 364 ms 63728 KB Output is correct
53 Correct 333 ms 76964 KB Output is correct
54 Correct 314 ms 83016 KB Output is correct
55 Correct 222 ms 67784 KB Output is correct
56 Correct 250 ms 74568 KB Output is correct
57 Correct 288 ms 85832 KB Output is correct
58 Correct 223 ms 79048 KB Output is correct
59 Correct 239 ms 78924 KB Output is correct
60 Correct 277 ms 75592 KB Output is correct
61 Correct 412 ms 124488 KB Output is correct
62 Correct 465 ms 108724 KB Output is correct
63 Correct 491 ms 63508 KB Output is correct
64 Correct 431 ms 52504 KB Output is correct
65 Correct 387 ms 45640 KB Output is correct
66 Correct 383 ms 42180 KB Output is correct
67 Correct 374 ms 40116 KB Output is correct
68 Correct 368 ms 39312 KB Output is correct
69 Correct 332 ms 39160 KB Output is correct
70 Correct 376 ms 38728 KB Output is correct
71 Correct 281 ms 38792 KB Output is correct
72 Correct 307 ms 39044 KB Output is correct
73 Correct 395 ms 38984 KB Output is correct
74 Correct 299 ms 39148 KB Output is correct
75 Correct 358 ms 39608 KB Output is correct
76 Correct 257 ms 40344 KB Output is correct
77 Correct 225 ms 42816 KB Output is correct
78 Correct 183 ms 47164 KB Output is correct