Given a string s, return all the palindromic permutations (without duplicates) of it. Return an empty list if no palindromic permutation could be form ...
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其他好文 时间:
2018-03-23 13:04:31
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237
46. Permutations (全排列) 47. Permutations II (全排列有重复的元素) 27字符串的排列 60. Permutation Sequence(求全排列的第k个排列) 31. Next Permutation (下一个全排列) ...
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其他好文 时间:
2018-03-10 14:03:46
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120
题目描述 You are given two permutations pp and qq , consisting of nn elements, and mm queries of the form: l_{1},r_{1},l_{2},r_{2}l1?,r1?,l2?,r2? $ (l_{1} ...
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其他好文 时间:
2018-02-25 15:57:36
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178
题目链接:http://codeforces.com/problemset/problem/888/D 题意: 给定n,k,问你有多少种1到n的排列,满足至少有n-k个a[i] == i。 (4 <= n <= 1000, 1 <= k <= 4) 题解: 转换题意: 给定n,k,问你有多少种1到n ...
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其他好文 时间:
2018-02-25 14:36:00
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186
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:
2018-02-15 13:17:55
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159
Given a collection of numbers that might contain duplicates, return all possible unique permutations. For example,[1,1,2] have the following unique pe ...
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其他好文 时间:
2018-02-14 20:19:08
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165
Given a collection of distinct numbers, return all possible permutations. For example,[1,2,3] have the following permutations: [ [1,2,3], [1,3,2], [2, ...
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其他好文 时间:
2018-02-14 19:58:17
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146
链接: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=3076 题意: 对于一个升序的排列1~n(1≤n≤300),用不超过2n^2次操作把它变成给定的排 ...
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其他好文 时间:
2018-02-06 16:42:10
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176
Given a collection of distinct numbers, return all possible permutations. For example,[1,2,3] have the following permutations:[ [1,2,3], [1,3,2], [2,1... ...
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其他好文 时间:
2018-02-06 01:12:58
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163
Permutations II 题解 题目来源:https://leetcode.com/problems/permutations ii/description/ Description Given a collection of numbers that might contain duplic ...
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其他好文 时间:
2018-02-05 14:21:50
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150