https://mirror.codeforces.com/contest/450/problem/D
can someone tells whats the approach of this question ??
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https://mirror.codeforces.com/contest/450/problem/D
can someone tells whats the approach of this question ??
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Yes I am calling your brother in some time.
Tutorial exists.
May u please share that tutorial ! Thanks in Advance
Click on the problem link and look for "contest materials" in the bottom right corner. In any case the tutorial is here.
Access to 900+ AC solutions also exists.