Problem with codeforces round 258 B

Revision en3, by jaioff02, 2022-01-30 17:10:10

I have been stuck on this question for a long long time.please help question-:https://codeforces.com/contest/451/problem/B code-:https://codeforces.com/contest/451/submission/144510169

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en3 English jaioff02 2022-01-30 17:10:10 69
en2 English jaioff02 2022-01-30 17:07:21 1205
en1 English jaioff02 2022-01-30 17:02:53 1279 Initial revision (published)