SORRY IF IT DISTRACTED YOU ! AND THANK YOU TO ALL KIND SOULS FOR HELPING !↵
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edit_ FOR THOSE WHO WONDER HOW I SOLVED HIGH RATED PROBLEM : FIRST, ITS AFTER THE CONTEST , AND SECOND I READ THEIR EDITORIALS , ALSO https://mirror.codeforces.com/contest/702/problem/E this is one the problem i solved 2000+ rated, its 9-10 years old problem , you may wonder that why i was studying binary lifting ?because there was recently a binary lifting problem in atcoder beginner contest (problem link — https://atcoder.jp/contests/abc438/tasks/abc438_e ) date- 2025/12/27 , so i was studying this concept and solving related problem then i found this 9-10 year old problem from codeforces on binary lifting :) its a fundamental problem of binary lifting :) , YOU MAY CHECK all high rated problems are those which i solved after the contest or are very old problem , during contest i barely solved 2 problems :)↵
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recently in hello 2026 contest, i solved [problem B](https://mirror.codeforces.com/contest/2183/problem/B) during the contest , which took me 2 hours almost (i am newbie afterall ) and during the contest i was going through it again i felt it may have passed pretest but it may fail on system testing so i added one more line of code ↵
which is this : ↵
if(op==0) break;↵
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you can check my both submissions as well : ↵
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[submission 1)](https://mirror.codeforces.com/contest/2183/submission/356860158) ↵
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time = Jan/07/2026 20:17 (acccepted)↵
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[submission 2)](https://mirror.codeforces.com/contest/2183/submission/356859351) ↵
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time = Jan/07/2026 20:14 (this one got skipped)↵
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it is soo sad to see getting a solution skipped when u gave it 2 hours to solve :( , ↵
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i dont know whom to address so i am writing a blog i hope it may reach to the right person ,↵
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kindly check it out [user:MikeMirzayanov][user:KAN]↵
and if you know whom to contact please let me know , and sorry if my blog disturbed you, im just idk sad cause of this, sorry again if it distracted you↵
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edit_ FOR THOSE WHO WONDER HOW I SOLVED HIGH RATED PROBLEM : FIRST, ITS AFTER THE CONTEST , AND SECOND I READ THEIR EDITORIALS , ALSO https://mirror.codeforces.com/contest/702/problem/E this is one the problem i solved 2000+ rated, its 9-10 years old problem , you may wonder that why i was studying binary lifting ?because there was recently a binary lifting problem in atcoder beginner contest (problem link — https://atcoder.jp/contests/abc438/tasks/abc438_e ) date- 2025/12/27 , so i was studying this concept and solving related problem then i found this 9-10 year old problem from codeforces on binary lifting :) its a fundamental problem of binary lifting :) , YOU MAY CHECK all high rated problems are those which i solved after the contest or are very old problem , during contest i barely solved 2 problems :)↵
↵
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edit_ FOR THOSE WHO WONDER HOW I SOLVED HIGH RATED PROBLEM : FIRST, ITS AFTER THE CONTEST , AND SECOND I READ THEIR EDITORIALS , ALSO https://mirror.codeforces.com/contest/702/problem/E this is one the problem i solved 2000+ rated, its 9-10 years old problem , you may wonder that why i was studying binary lifting ?because there was recently a binary lifting problem in atcoder beginner contest (problem link — https://atcoder.jp/contests/abc438/tasks/abc438_e ) date- 2025/12/27 , so i was studying this concept and solving related problem then i found this 9-10 year old problem from codeforces on binary lifting :) its a fundamental problem of binary lifting :) , YOU MAY CHECK all high rated problems are those which i solved after the contest or are very old problem , during contest i barely solved 2 problems :)↵
↵
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which is this : ↵
if(op==0) break;↵
↵
↵
you can check my both submissions as well : ↵
↵
[submission 1)](https://mirror.codeforces.com/contest/2183/submission/356860158) ↵
↵
time = Jan/07/2026 20:17 (acccepted)↵
↵
[submission 2)](https://mirror.codeforces.com/contest/2183/submission/356859351) ↵
↵
time = Jan/07/2026 20:14 (this one got skipped)↵
↵
↵
it is soo sad to see getting a solution skipped when u gave it 2 hours to solve :( , ↵
↵
i dont know whom to address so i am writing a blog i hope it may reach to the right person ,↵
↵
kindly check it out [user:MikeMirzayanov][user:KAN]↵
and if you know whom to contact please let me know , and sorry if my blog disturbed you, im just idk sad cause of this, sorry again if it distracted you↵
↵
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↵
↵
↵
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edit_ FOR THOSE WHO WONDER HOW I SOLVED HIGH RATED PROBLEM : FIRST, ITS AFTER THE CONTEST , AND SECOND I READ THEIR EDITORIALS , ALSO https://mirror.codeforces.com/contest/702/problem/E this is one the problem i solved 2000+ rated, its 9-10 years old problem , you may wonder that why i was studying binary lifting ?because there was recently a binary lifting problem in atcoder beginner contest (problem link — https://atcoder.jp/contests/abc438/tasks/abc438_e ) date- 2025/12/27 , so i was studying this concept and solving related problem then i found this 9-10 year old problem from codeforces on binary lifting :) its a fundamental problem of binary lifting :) , YOU MAY CHECK all high rated problems are those which i solved after the contest or are very old problem , during contest i barely solved 2 problems :)↵
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