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leetcode4:Permutation
#include #include #include #include //the next permutationtemplatebool STL_next_permutation(BidirIt first, BidirIt last){ if (first == last) return...
分类:其他好文   时间:2015-09-20 16:19:20    阅读次数:187
next_permutation原理剖析
最近刷leetcode的时候遇见next permutation这道题,感觉挺有意思的一个题目,递归的方法是较简单并且容易想到的,在网上搜了其余的解法,就是std::next_permutation非递归解法,但是让人不是很舒服的就是关于原理的部分,千篇一律的都是摘抄《STL源码剖析》,也就是这样的...
分类:其他好文   时间:2015-09-20 09:10:59    阅读次数:303
x位全排列(next_permutation)
擅长排列的小明时间限制:1000ms | 内存限制:65535KB难度:4描述小明十分聪明,而且十分擅长排列计算。比如给小明一个数字5,他能立刻给出1-5按字典序的全排列,如果你想为难他,在这5个数字中选出几个数字让他继续全排列,那么你就错了,他同样的很擅长。现在需要你写一个程序来验证擅长排列的小明...
分类:其他好文   时间:2015-09-18 00:37:13    阅读次数:232
leetcode/Next Permutation
/* mplement?next?permutation,?which?rearranges?numbers?into?the?lexicographically?next?greater?permutation?of?numbers. If?such?arrangement?is?not?possible,?it?must?rearrange?i...
分类:其他好文   时间:2015-09-17 15:43:07    阅读次数:140
[LeetCode#267] Palindrome Permutation II
Problem:Given a strings, return all the palindromic permutations (without duplicates) of it. Return an empty list if no palindromic permutation could ...
分类:其他好文   时间:2015-09-14 06:58:58    阅读次数:198
hdoj 2404 Permutation Recovery
Permutation RecoveryTime Limit: 10000/4000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 456Accepted Submission(s): 31...
分类:其他好文   时间:2015-09-12 19:02:10    阅读次数:237
CF 500 B. New Year Permutation 并查集
User ainta has a permutationp1,?p2,?...,?pn. As the New Year is coming, he wants to make his permutation as pretty as possible.Permutationa1,?a2,?...,...
分类:其他好文   时间:2015-09-11 23:32:26    阅读次数:317
[LeetCode#266] Palindrome Permutation
Problem:Given a string, determine if a permutation of the string could form a palindrome.For example,"code"-> False,"aab"-> True,"carerac"-> True.Gene...
分类:其他好文   时间:2015-09-10 08:25:51    阅读次数:157
hdu 5166 Missing number
题目连接http://acm.hdu.edu.cn/showproblem.php?pid=5166Missing numberDescriptionThere is a permutation without two numbers in it, and now you know what num...
分类:其他好文   时间:2015-09-10 00:15:21    阅读次数:169
[LeetCode#31]Next Permutation
Problem:Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.If such arrangement is not...
分类:其他好文   时间:2015-09-07 07:01:04    阅读次数:214
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