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Need help in Q. B of #532
By Prvt, history, 5 years ago, In English

I don't know what is right place to ask help regarding questions. I am solving http://codeforces.com/contest/1100/problem/B I read tutorial which solves it in O(m), but my solution is also of O(m), and I am getting TLE. Can someone suggest me the improvements? This is my solution:http://codeforces.com/contest/1100/submission/48488959

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5 years ago, # |
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s=s+"0" This runs in O(n), not O(1). You should replace it with s+="0".

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