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Description 动物王国中有三类动物A,B,C，这三类动物的食物链构成了有趣的环形。A吃B， B吃C，C吃A。 现有N个动物，以1－N编号。每个动物都是A,B,C中的一种，但是我们并不知道它到底是哪一种。 有人用两种说法对这N个动物所构成的食物链关系进行描述： 第一种说法是"1 X Y"，表 阅读全文
posted @ 2016-08-21 14:42
Jason杰
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Description Farmer John wants to repair a small length of the fence around the pasture. He measures the fence and finds that he needs N (1 ≤ N ≤ 20,00 阅读全文
posted @ 2016-08-20 23:53
Jason杰
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Description A group of cows grabbed a truck and ventured on an expedition deep into the jungle. Being rather poor drivers, the cows unfortunately mana 阅读全文
posted @ 2016-08-20 20:29
Jason杰
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Description People in Silverland use coins.They have coins of value A1,A2,A3...An Silverland dollar.One day Tony opened his money-box and found there 阅读全文
posted @ 2016-08-20 12:25
Jason杰
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给定两个字符串，求它们最长公共子序列的长度。 例如： s = "abcd", t = "becd" 输出3("bcd") 利用动态规划求解 阅读全文
posted @ 2016-08-20 09:58
Jason杰
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Description Saruman the White must lead his army along a straight path from Isengard to Helm’s Deep. To keep track of his forces, Saruman distributes 阅读全文
posted @ 2016-08-19 18:27
Jason杰
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Description FJ is about to take his N (1 ≤ N ≤ 2,000) cows to the annual"Farmer of the Year" competition. In this contest every farmer arranges his co 阅读全文
posted @ 2016-08-19 16:49
Jason杰
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实验了一下next_permutation 代码如下 效果如下 阅读全文
posted @ 2016-08-19 16:21
Jason杰
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Description Due to recent rains, water has pooled in various places in Farmer John's field, which is represented by a rectangle of N x M (1 <= N <= 10 阅读全文
posted @ 2016-08-19 15:58
Jason杰
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Description An army of ants walk on a horizontal pole of length l cm, each with a constant speed of 1 cm/s. When a walking ant reaches an end of the p 阅读全文
posted @ 2016-08-19 15:22
Jason杰
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