Share the problem which u wish it gets deleted from your head so u could solve it again !
Share the problem which u wish it gets deleted from your head so u could solve it again !
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https://codeforces.me/contest/802/problem/E
https://codeforces.me/contest/375/problem/D
2 of my favourite ones
Return my account and stop cheating from my account
https://codeforces.me/problemset/problem/1172/F
My fav DS problem.
A1 , A2 , B , I .
These are some of the beautiful problems. If you give them try, then it would be best to not look at the editorial.
2077B - Finding OR Sum