KING-SEN's blog

Little help please !!!!
By KING-SEN, history, 9 years ago, In English

http://www.spoj.com/problems/HORRIBLE/ Hi everybody, I want to solve this problem with segment tree lazy propagation. I code it with segment tree lazy propagation but it gives me a wrong answer.I check it but I am unable to find any bug. Please anyone can help me to check my code and give me any solution for it.
code link: http://codepad.org/0LePV2tI

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9 years ago, # |
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I guess this could be the problem

memset(ara, 0, n);
memset(lazy, 0, 3*n);
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    9 years ago, # ^ |
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    I replace the memset(ara, 0, sizeof (ara)); and memset(lazy, 0, sizeof(lazy)); But worng answer.

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      9 years ago, # ^ |
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      Check your query function! It might overflow

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9 years ago, # |
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Please recommend some good tutorials for segment tree and binary indexed tree?

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