Give a string, which only contains a-z. List all the permutation of upcase and lowcase. For example, str = "ab",  the output should be "ab", "aB", "Ab", "AB" for str = "abc", the output should be…

[本文链接] http://www.cnblogs.com/hellogiser/p/string-permutation-with-repeating-chars.html [题目] 输入一个字符串,打印出该字符串中字符的所有排列.例如输入字符串abc,则输出由字符a.b.c所能排列出来的所有字符串abc.acb.bac.bca.cab和cba.例如输入字符串aba,则输出由字符a.b所能排列出来的所有字符串aab.aba.baa. [分析] 之前的博文28.字符串的排列之第1篇[String…

Given two strings, write a method to decide if one is a permutation of the other. Example abcd is a permutation of bcad, but abbe is not a permutation of abe public class Solution { /** * @param A a string * @param B a string * @return a boolean */ p…

Description Given two strings, write a method to decide if one is a permutation of the other. Example abcd is a permutation of bcad, but abbe is not a permutation of abe 解题:遇到过类似的题目,比较简单的方法是,把字符串转化为字符数组,然后排序.比较每一位的数是否相等.这样做效率比较低,代码如下: public class So…

string问题中经常遇到在stringA中查找stringB,主要通过substr()跟find()来完成 substr().find().replace() 都可以用一个位置加上一个长读去描述子串,substr()用于读字符串,replace()用于写字符串 1.find(): int find(char c, int pos = 0) const;                 //从pos开始查找字符c在当前字符串的位置int find(const char *s, int pos =…

Palindrome Permutation I Given a string, determine if a permutation of the string could form a palindrome. For example,"code" -> False, "aab" -> True, "carerac" -> True. Hint: Consider the palindromes of odd vs even…

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 for n = 3: "123" "132" "213" "231" "312" "321&…

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汉化前: 找到这个文件: 打开文件,复制下面这段替换进去保存,重新打开软件即可:(*改之前备份一下) <?xml version="1.0"?> <data> <value type="list" content-type="object" content-struct-name="app.MenuItem"> <!-- File Menu --> <value type=…

Yet Another Source Code for LintCode Current Status : 232AC / 289ALL in Language C++, Up to date (2016-02-10) For more problems and solutions, you can see my LintCode repository. I'll keep updating for full summary and better solutions. See cnblogs t…