A message containing letters from A-Z is being encoded to numbers using the following mapping:
'A' -> 1
'B' -> 2
...
'Z' -> 26
Given an encoded message containing digits, determine the total number of ways to...
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其他好文 时间:
2015-06-23 23:10:22
阅读次数:
196
文本处理库主要是对字符串的操作使用,以及对文本内容方面进行处理。 3.1 string--公共的字符串操作源码位置在:Lib/string.py 3.1.1 字符串常量下面就是在字符串模块里定义的字符串常量:string.ascii_letters这个常量包含字母的大写和小写,不会随着本地化而改变。其实它就是ascii_loercase和ascii_uppercase的联合集合。 string.a...
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其他好文 时间:
2015-06-22 12:32:25
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136
Professor GukiZ doesn't accept string as they are. He likes to swap some letters in string to obtain a new one.
GukiZ has strings a, b,
and c. He wants to obtain string k by
swapping some lette...
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其他好文 时间:
2015-06-19 12:00:04
阅读次数:
149
A message containing letters from A-Z is being encoded to numbers using the
following mapping:
'A' -> 1
'B' -> 2
...
'Z' -> 26
Given an encoded message containing digits, determine the total nu...
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其他好文 时间:
2015-06-18 19:46:33
阅读次数:
98
Professor GukiZ doesn't accept string as they are. He likes to swap some letters in string to obtain a new one.
GukiZ has strings a, b,
and c. He wants to obtain string k by
swapping some lette...
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其他好文 时间:
2015-06-17 16:48:35
阅读次数:
162
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters fo...
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其他好文 时间:
2015-06-17 14:57:56
阅读次数:
111
Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telephon...
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其他好文 时间:
2015-06-14 21:13:20
阅读次数:
125
Given a 2D board and a list of words from the dictionary, find all words in the board.Each word must be constructed from letters of sequentially adjac...
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其他好文 时间:
2015-06-13 20:04:43
阅读次数:
119
题目链接 题目要求: A message containing letters fromA-Zis being encoded to numbers using the following mapping:'A' -> 1'B' -> 2...'Z' -> 26 Given an enco...
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其他好文 时间:
2015-06-12 00:54:04
阅读次数:
104
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters fo...
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其他好文 时间:
2015-06-11 18:25:40
阅读次数:
104