??
1、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 letter...
分类:
其他好文 时间:
2014-05-26 05:03:19
阅读次数:
172
PS:接上一篇 本文摘自OSchina Linuxqueen
不幸的是,这样做看上去似乎不太可能。即使是我们有神奇的函数,可以让我们从n遍历到无限大,我们也会在返回第一个值之后卡住:
1
def get_primes(start):
2
for element in magical_infinite_ra...
分类:
编程语言 时间:
2014-05-26 04:07:40
阅读次数:
366
一,Linux篇
1,停掉mysql服务:service mysql stop;
2,修改my.cnf文件,可以通过find / -name my.cnf来找到文件,里面内容包含[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql即是我们要找的文件,在user-mysql下加入:skip-grant-...
分类:
数据库 时间:
2014-05-26 04:06:14
阅读次数:
346
Summation of primes
Problem 10
The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.
Find the sum of all the primes below two million.
还是使用Sieve of Eratosthenes 算法
我的python代码如下:
...
分类:
其他好文 时间:
2014-05-26 03:40:15
阅读次数:
243
Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have
exact...
分类:
其他好文 时间:
2014-05-25 00:46:51
阅读次数:
229
题目:
Given an array S of n integers, are there elements a, b, c in S such that a + b + c =
0? Find all unique
triplets in the array which gives the sum of zero.
Note:
Elements...
分类:
其他好文 时间:
2014-05-25 00:39:37
阅读次数:
343
【题目】
Find the contiguous subarray within an array (containing at least one number) which has the largest sum.
For example, given the array [?2,1,?3,4,?1,2,1,?5,4],
the contiguous subarray [4,?1,2,1] has the largest sum = 6.
【题意】
给定一个数组,找出和最大的子数组,返回...
分类:
其他好文 时间:
2014-05-24 22:19:17
阅读次数:
260
Young tableaus 是 Introduction_to_algorithms的一 道课后习题, 一度还把我难住了。现在把 python 代码贴出来,供大家参考。
#! /usr/bin/python
""" young tableau
m x n matrix
"""
import sys
class element():
def __ini...
分类:
其他好文 时间:
2014-05-24 21:08:21
阅读次数:
397
【题目】
Given an array of non-negative integers, you are initially positioned at the first index of the array.
Each element in the array represents your maximum jump length at that position.
Determine if you are able to reach the last index.
For example:...
分类:
其他好文 时间:
2014-05-24 20:44:39
阅读次数:
221
Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume
that each input would have exact...
分类:
其他好文 时间:
2014-05-24 20:43:37
阅读次数:
341