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Number String Problem Description The signature of a permutation is a string that is computed as follows: for each pair of consecutive elements of the 阅读全文
posted @ 2017-10-31 22:20
氟铷氡氦
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Transfer water Problem Description XiaoA lives in a village. Last year flood rained the village. So they decide to move the whole village to the mount 阅读全文
posted @ 2017-10-31 21:33
氟铷氡氦
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