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Problem Description A subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X = <x1, x2, 阅读全文
posted @ 2019-08-18 17:38
白菜茄子
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Problem Description Many years ago , in Teddy’s hometown there was a man who was called “Bone Collector”. This man like to collect varies of bones , s 阅读全文
posted @ 2019-08-18 16:32
白菜茄子
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Problem Description Suppose there are 5 types of coins: 50-cent, 25-cent, 10-cent, 5-cent, and 1-cent. We want to make changes with these coins for a 阅读全文
posted @ 2019-08-18 10:43
白菜茄子
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