The set [1,2,3,…,n] contains a total of n! unique permutations. By listing and labeling all of the permutations in order,We get the following sequence ...
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其他好文 时间:
2016-10-28 13:31:45
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343
Permutations Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 3041 Accepted: 1641 Description We remind that the permutation of some final s ...
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其他好文 时间:
2016-10-16 18:41:59
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119
【题目大意】给出二元关系,此关系满足传递性,求其中与其余元素关系确定的元素个数。 【解题思路】对此关系进行传递闭包运算。用邻接矩阵储存。用Floyd更新关系。对于元素i找出 第i行 和 第i列 中关系确定的个数,若==(n-1) 则ans++; 1 #include "cstdio" 2 #incl ...
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其他好文 时间:
2016-10-15 19:17:22
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142
The set [1,2,3,…,n] contains a total of n! unique permutations. By listing and labeling all of the permutations in order,We get the following sequence ...
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其他好文 时间:
2016-10-09 07:26:33
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196
190. Reverse Bits:原数向右移动,如果bit是1,就给结果在相应的位置加上1. 46. Permutations:最适合这道题的dfs搜索顺序是把加一个限制条件:搜索过的数字跳过。脑子里面有个tree的模型然后去想应该搜索的顺序和条件。 100. Same Tree: 递归:检查是不 ...
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其他好文 时间:
2016-10-09 07:21:39
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153
DFS : depth first search BFS: breadth first search DFS : 46. Permutations Given a collection of distinct numbers, return all possible permutations. Fo ...
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其他好文 时间:
2016-10-04 07:29:02
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192
1.permutations Given a list of numbers, return all possible permutations. For nums = [1,2,3], the permutations are: [ [1,2,3], [1,3,2], [2,1,3], [2,3, ...
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其他好文 时间:
2016-09-28 09:54:13
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135
Given a collection of distinct numbers, return all possible permutations. For example,[1,2,3] have the following permutations: ...
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其他好文 时间:
2016-09-27 06:59:20
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134
题目: The set [1,2,3,…,n] contains a total of n! unique permutations. By listing and labeling all of the permutations in order, We get the following seq ...
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其他好文 时间:
2016-09-13 16:28:25
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143
题目: LeetCode46 I Given a collection of distinct numbers, return all possible permutations. (Medium) For example,[1,2,3] have the following permutation ...
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其他好文 时间:
2016-09-05 23:23:51
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241