Submission #1114303

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1114303	2024-11-18T13:51:37 Z	coolsentenceidontremember	Sateliti (COCI20_satellti)	C++17	110 / 110	605 ms	36864 KB

Main

/*


;;;:::::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;;;;;;;:::::::::::::::::::::;;;;;;;;;;:::::::::::::;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;++++
::::::::::::::::;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 = 2005;
const ll MOD = 1e9 + 9;
ll P, Q;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
char grid[N][N];
vector<ll> p, q;
ll hsh[N][N];
void generate(const int &n, const int &m){
	p.push_back(1);
	q.push_back(1);
	for (int i = 1; i <= 2*m; i++) p.push_back(p.back()*P%MOD);
	for (int i = 1; i <= 2*n; i++) q.push_back(q.back()*Q%MOD);
	memset(hsh, 0, sizeof hsh);
	for (int i = 1; i <= 2*n; i++){
		for (int j = 1; j <= 2*m; j++){
			hsh[i][j] = (hsh[i-1][j]*Q + hsh[i][j-1]*P - hsh[i-1][j-1]*P%MOD*Q%MOD)%MOD + MOD;
			hsh[i][j] = (hsh[i][j] + grid[i][j])%MOD;
		}
	}
}

ll get_hash(int r1,int c1,int r2,int c2){
	ll ret = hsh[r2][c2];
	ret = (ret - hsh[r1-1][c2]*q[r2-r1+1] - hsh[r2][c1-1]*p[c2-c1+1])%MOD + MOD;
	ret = (ret + hsh[r1-1][c1-1]*q[r2-r1+1]%MOD*p[c2-c1+1]%MOD) % MOD;
	return (ret+MOD)%MOD;
}

int main(){
	setIO();
    int n, m;
    cin >> n >> m;
    for (int i = 1; i <= n; i++){
    	for (int j = 1; j <= m; j++){
    		char c;
    		cin >> c;
    		grid[i][j] = grid[i][j+m] = grid[i+n][j] = grid[i+n][j+m] = c;
		}
	}
	P = uniform_int_distribution<int>(0, MOD-1)(rng);
	Q = uniform_int_distribution<int>(0, MOD-1)(rng);
	generate(n, m);
	pii ans = {1, 1};
	for (int i = 1; i+n-1 <= 2*n; i++){
		for (int j = 1; j + m-1 <= 2*m; j++){
			int l = 1, r = n+1;
			while (l < r){
				int mid = (l+r)/2;
				if (get_hash(i, j, i+mid-1, j+m-1) == get_hash(ans.ff, ans.ss, ans.ff+mid-1, ans.ss+m-1)) l = mid+1;
				else r = mid;
			}
			if (l == n+1) continue;
			int r_dif = l;
			l = 1, r = m+1;
			while (l < r){
				int mid = (l+r)/2;
				if (get_hash(i+r_dif-1, j, i+r_dif-1, j + mid - 1) == get_hash(ans.ff+r_dif-1, ans.ss, ans.ff + r_dif-1, ans.ss + mid -1)) l = mid+1;
				else r = mid;
			}
			if (l == m+1) continue;
			int c_dif = l;
			if (grid[i+r_dif-1][j+c_dif-1] < grid[ans.ff+r_dif-1][ans.ss+c_dif-1]) ans = mp(i, j);
		}
	}
	for (int i = ans.ff; i <= ans.ff+n-1; i++) {
		for (int j=ans.ss; j <= ans.ss+m-1; j++) cout << grid[i][j];
		cout << '\n';
	}
}

Compilation message

Main.cpp: In function 'void setIO(std::string)':
Main.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);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.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

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	15 ms	33360 KB	Output is correct
2	Correct	16 ms	33360 KB	Output is correct
3	Correct	16 ms	33436 KB	Output is correct
4	Correct	15 ms	33372 KB	Output is correct
5	Correct	15 ms	33484 KB	Output is correct
6	Correct	16 ms	33360 KB	Output is correct
7	Correct	15 ms	33360 KB	Output is correct

Subtask #2

40.0 / 40.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	15 ms	33360 KB	Output is correct
2	Correct	16 ms	33360 KB	Output is correct
3	Correct	16 ms	33436 KB	Output is correct
4	Correct	15 ms	33372 KB	Output is correct
5	Correct	15 ms	33484 KB	Output is correct
6	Correct	16 ms	33360 KB	Output is correct
7	Correct	15 ms	33360 KB	Output is correct
8	Correct	50 ms	33492 KB	Output is correct
9	Correct	14 ms	33376 KB	Output is correct
10	Correct	11 ms	33360 KB	Output is correct
11	Correct	52 ms	33360 KB	Output is correct
12	Correct	55 ms	33360 KB	Output is correct
13	Correct	56 ms	33360 KB	Output is correct
14	Correct	57 ms	33360 KB	Output is correct
15	Correct	57 ms	33360 KB	Output is correct
16	Correct	62 ms	33492 KB	Output is correct
17	Correct	60 ms	33496 KB	Output is correct

Subtask #3

60.0 / 60.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	15 ms	33360 KB	Output is correct
2	Correct	16 ms	33360 KB	Output is correct
3	Correct	16 ms	33436 KB	Output is correct
4	Correct	15 ms	33372 KB	Output is correct
5	Correct	15 ms	33484 KB	Output is correct
6	Correct	16 ms	33360 KB	Output is correct
7	Correct	15 ms	33360 KB	Output is correct
8	Correct	50 ms	33492 KB	Output is correct
9	Correct	14 ms	33376 KB	Output is correct
10	Correct	11 ms	33360 KB	Output is correct
11	Correct	52 ms	33360 KB	Output is correct
12	Correct	55 ms	33360 KB	Output is correct
13	Correct	56 ms	33360 KB	Output is correct
14	Correct	57 ms	33360 KB	Output is correct
15	Correct	57 ms	33360 KB	Output is correct
16	Correct	62 ms	33492 KB	Output is correct
17	Correct	60 ms	33496 KB	Output is correct
18	Correct	519 ms	36820 KB	Output is correct
19	Correct	23 ms	35664 KB	Output is correct
20	Correct	26 ms	33360 KB	Output is correct
21	Correct	510 ms	36864 KB	Output is correct
22	Correct	605 ms	36680 KB	Output is correct
23	Correct	504 ms	36680 KB	Output is correct
24	Correct	558 ms	36680 KB	Output is correct
25	Correct	535 ms	36668 KB	Output is correct
26	Correct	588 ms	36828 KB	Output is correct
27	Correct	579 ms	36680 KB	Output is correct