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String to Integer (atoi) leetcode
题目的意思是要将一个字符串转换成数字 这个题目的重点是要处理    各种各样的输入情况 在题目下面有一大段英文: Requirements for atoi: The function first discards as many whitespace characters as necessary until the first non-whitespace character is...
分类:其他好文   时间:2015-01-13 23:22:36    阅读次数:428
linux /usr/local/apache/bin/apxs 路径是在的,为什么会提示You must specify a valid --with-apxs path
linux下编译捍Youmustspecifyavalid--with-apxspath原因是:在没有安装prel就先安装apache造成的解决方法:[root@apachebin]#vi/usr/local/apache/bin/apxs修改下面的第一行#!/usr/bin/perl-w##LicensedtotheApacheSoftwareFoundation(ASF)underoneormore#contributorlicenseag..
分类:Web程序   时间:2015-01-13 20:03:14    阅读次数:132
[LeetCode]Text Justification
Given an array of words and a length L, format the text such that each line has exactly L characters and is fully (left and right) justified. You should pack your words in a greedy approach; that i...
分类:其他好文   时间:2015-01-13 09:03:32    阅读次数:217
ascii characters switch
ascii = {}ascii[' '] = ' 'ascii['!'] = '!'ascii['"'] = '\"'ascii['#'] = '#'ascii['$'] = '$'ascii['%'] = '%'ascii['&'] = '&...
分类:其他好文   时间:2015-01-12 23:49:00    阅读次数:258
[LeetCode]Wildcard Matching
Implement wildcard pattern matching with support for '?' and '*'. '?' Matches any single character. '*' Matches any sequence of characters (including the empty sequence). The matching should cover t...
分类:其他好文   时间:2015-01-12 16:39:22    阅读次数:168
LeetCode---Length of Last Word
Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string. If the last word does not exist, return 0. Note: A word is...
分类:其他好文   时间:2015-01-12 13:03:03    阅读次数:136
leetcode3 Longest substring whitout repeat characters
求字符串中的最长无重复子串的长度,例如"abcabcbb",最长无重复子串为"abc",长度为3。因为要求无重复,因此想到要用HashMap来保存,因为HashMap的键值不能重复。将要存入的字符作为key,字符在字符串中的下标作为value,如果map中已经存有该字符,则删掉该字符以及字符串中该字符之前的所有字符,然后再存入。例如字符串为"abcbd",如已存入abc,现在要存b,则删掉ab,存...
分类:其他好文   时间:2015-01-12 11:38:25    阅读次数:217
[LeetCode][Python]Longest Substring Without Repeating Characters
# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com'https://oj.leetcode.com/problems/longest-substring-without-repeating-characters/Given a st...
分类:编程语言   时间:2015-01-12 01:36:33    阅读次数:255
LeetCode No.3 Longest Substring Without Repeating Characters
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters fo...
分类:其他好文   时间:2015-01-11 22:58:44    阅读次数:223
leetcode 150. Evaluate Reverse Polish Notation
Evaluate the value of an arithmetic expression inReverse Polish Notation.Valid operators are+,-,*,/. Each operand may be an integer or another express...
分类:其他好文   时间:2015-01-11 17:35:26    阅读次数:183
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