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Mr. Panda likes ice cream very much especially the ice cream tower. An ice cream tower consists of K ice cream balls stacking up as a tower. In order 阅读全文
posted @ 2017-08-01 19:58
Crutain
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Description The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how many quadruplet (a, b, c, d ) ∈ A 阅读全文
posted @ 2017-08-01 19:37
Crutain
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Petya recieved a gift of a string s with length up to 105 characters for his birthday. He took two more empty strings t and u and decided to play a ga 阅读全文
posted @ 2017-08-01 19:19
Crutain
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