see this: https://codeforces.com/problemset/problem/1285/B
i understood the problem but could not identify how to solve it.. i read the editorial btw don't understood.. please give me a proper idea.. :(
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see this: https://codeforces.com/problemset/problem/1285/B
i understood the problem but could not identify how to solve it.. i read the editorial btw don't understood.. please give me a proper idea.. :(
see this link: https://codeforces.com/contest/1284/submission/68190516
ios_base :: sync_with_stdio(false); cin.tie(NULL);
when remove this two line it got ac.. but before wa.. why and how??
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