i'm stuck on this problem
http://lightoj.com:81/volume/problem/1187
forum says there is an O(n) greedy and an nlog(n) solution with BIT/segtree .can you give any hint or idea so i can get closer to solve this.
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this is the problem link ...... http://lightoj.com:81/volume/problem/1097 it can be solved using bit but how does it fit into the complexity ??
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