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bzoj2789[Poi2012]Letters*
bzoj2789[Poi2012]Letters 题意: 给出两个长度相同且由大写英文字母组成的字符串A、B,保证A和B中每种字母出现的次数相同。现在每次可以交换A中相邻两个字符,求最少需要交换多少次可以使得A变成B。长度≤1000000 题解: 把A串中所有字母替换成该字母在B串中的位置,如果有相 ...
分类:其他好文   时间:2016-09-04 15:59:59    阅读次数:179
LeetCode 383 Ransom Note
Given an arbitrary ransom note string and another string containing letters from all the magazines, write a function that will return true if the rans ...
分类:其他好文   时间:2016-09-04 01:34:04    阅读次数:144
[LeetCode] NO. 389 Find the Difference
[题目] Given two strings s and t which consist of only lowercase letters. String t is generated by random shuffling string s and then add one more lette ...
分类:其他好文   时间:2016-09-03 16:33:36    阅读次数:171
CodeForces 709C Letters Cyclic Shift
贪心。 肯定是两个$a$之间的那些字符都$-1$,没有$a$就全部$-1$。如果输入的串全是$a$,那么把最后一个$a$改成$z$。 ...
分类:其他好文   时间:2016-09-02 22:00:23    阅读次数:159
Find the Difference
Given two strings s and t which consist of only lowercase letters. String t is generated by random shuffling string s and then add one more letter at ...
分类:其他好文   时间:2016-09-02 06:24:29    阅读次数:140
Alien Dictionary
There is a new alien language which uses the latin alphabet. However, the order among letters are unknown to you. You receive a list of words from the ...
分类:其他好文   时间:2016-09-02 00:41:26    阅读次数:199
[LeetCode] Find the Difference
Given two strings s and t which consist of only lowercase letters. String t is generated by random shuffling string s and then add one more letter at ...
分类:其他好文   时间:2016-09-01 18:35:05    阅读次数:108
Leetcode 389 Find the Difference
Given two strings s and t which consist of only lowercase letters. String t is generated by random shuffling string s and then add one more letter at ...
分类:其他好文   时间:2016-08-31 23:58:22    阅读次数:473
Decode Ways,编码方式数量求解。动态规划问题。
问题描述: A message containing letters from A-Z is being encoded to numbers using the following mapping: Given an encoded message containing digits, deter ...
分类:其他好文   时间:2016-08-30 18:00:11    阅读次数:167
Find the Difference -- LeetCode
Given two strings s and t which consist of only lowercase letters. String t is generated by random shuffling string s and then add one more letter at ...
分类:其他好文   时间:2016-08-29 06:55:30    阅读次数:397
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