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[LeetCode] 384. Shuffle an Array 数组洗牌
Shuffle a set of numbers without duplicates. Example: 给一个没有重复数字的数组,实现重置和洗牌的功能。 解法:遍历数组每个位置,每次都随机生成一个坐标位置,然后交换当前位置和随机位置的数字,这样如果数组有n个数字,那么也随机交换了n组位置,从而达 ...
分类:编程语言   时间:2018-10-03 22:12:54    阅读次数:177
29. Divide Two Integers
这题 Given two integers dividend and divisor, divide two integers without using multiplication, division and mod operator. Return the quotient after div ...
分类:其他好文   时间:2018-10-02 17:48:28    阅读次数:132
leetcode 003
3. Longest Substring Repeating Character Difficulty:Medium The link: https://leetcode.com/problems/longest substring without repeating characters/ Des ...
分类:其他好文   时间:2018-09-29 00:46:23    阅读次数:139
elasticsearch--- Exists Query
Exists Queryedit Exists Queryedit Exists Queryedit Exists Queryedit Returns documents that have at least one non-null value in the original field: GET ...
分类:其他好文   时间:2018-09-28 12:41:49    阅读次数:553
leetcode#3Longest Substring Without Repeating Characters
给定一个字符串,找出不含有重复字符的最长子串的长度。 示例: 给定 “abcabcbb” ,没有重复字符的最长子串是 “abc” ,那么长度就是3。给定 “bbbbb” ,最长的子串就是 “b” ,长度是1。给定 “pwwkew” ,最长子串是 “wke” ,长度是3。请注意答案必须是一个子串,”p ...
分类:其他好文   时间:2018-09-28 11:00:47    阅读次数:134
Report: Disappearing Wetlands Put Planet Life at Risk
A new report warns that wetlands are disappearing three times faster than the world’s forests, with serious consequences for all life on earth.The Ram ...
分类:移动开发   时间:2018-09-28 10:57:13    阅读次数:180
数据库连接,报错--mysql版本不匹配
Thu Apr 19 10:54:47 CST 2018 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, ...
分类:数据库   时间:2018-09-27 22:10:04    阅读次数:358
LeetCode-Algorithms #003 Longest Substring Without Repeating Characters, Database #177 Nth Highest Salary
LeetCode-Algorithms #003 Longest Substring Without Repeating Characters 对于给定的字符串, 找出其每个字符都不重复的子串中最长的那个, 并返回该子串的长度: 想法还是遍历: 一看就知道效率很低, 等于是把所有不重复的子串都找出来 ...
分类:数据库   时间:2018-09-27 19:14:32    阅读次数:201
HPC install software on python virtual environment without root right and use X graph (windows) to display
1. Using Python Virtual Environment to install new softwares without root right. Please try to use Python virtualenv to setup and manage Python enviro ...
分类:编程语言   时间:2018-09-25 12:47:13    阅读次数:213
LeetCode——Problem3:Longest Substring Without Repeating Characters
Problem3:Longest Substring Without Repeating Characters ...
分类:其他好文   时间:2018-09-24 12:46:50    阅读次数:125
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