class Solution { private final String[] map = {"", "", "abc", "def", "ghi", "jkl", "mno", "pqrs", "tuv", "wxyz"}; public List letterCombinations(Strin... ...
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其他好文 时间:
2017-09-10 09:58:48
阅读次数:
130
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 ...
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其他好文 时间:
2017-09-09 09:45:51
阅读次数:
203
From beginning till end, this message has been waiting to be conveyed. For a given unordered multiset of n lowercase English letters ("multi" means th ...
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其他好文 时间:
2017-09-02 19:55:37
阅读次数:
214
There is a strange printer with the following two special requirements: Given a string consists of lower English letters only, your job is to count th ...
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其他好文 时间:
2017-09-02 15:32:00
阅读次数:
125
1、模块 ascii_letters和digits ...
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编程语言 时间:
2017-09-02 10:37:21
阅读次数:
172
Given a digit string, return all possible letter combinations that the number could represent. A mapping of digit to letters (just like on the telepho ...
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其他好文 时间:
2017-08-28 00:45:32
阅读次数:
120
Given a List of words, return the words that can be typed using letters of alphabet on only one row's of American keyboard like the image below. Examp ...
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其他好文 时间:
2017-08-27 11:13:35
阅读次数:
202
【BZOJ2789】[Poi2012]Letters Description 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。 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 ...
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编程语言 时间:
2017-08-26 11:38:46
阅读次数:
123
题目描述 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。 输入 第一行一个正整数n (2<=n<=1,000,000),表示字符串的长度。 第二行和第三行各一个长度为n的字符串,并且只 ...
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编程语言 时间:
2017-08-26 11:32:20
阅读次数:
144
Problem Description Giving two strings and you should judge if they are matched.The first string contains lowercase letters and uppercase letters.The ...
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其他好文 时间:
2017-08-22 23:02:43
阅读次数:
160