I_Love_Hanh_Trinh's blog

COT2 in SPOJ
By I_Love_Hanh_Trinh, 10 years ago, In English

Hi everybody, Now, I'm trying to solve this problem in SPOJ (Here link). But i don't have any idea. Can someone help me, pls? Thanks.

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10 years ago, # |
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I would use HLD + segment tree.

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    10 years ago, # ^ |
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    Thanks. I think so. But i don't know use HLD + segment tree to count many different integers. Can you help me in this problem?

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