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Exercise 25: Even More Practice
def break_words(stuff): """This function will break up words for us.""" words = stuff.split(' ') return wordsdef sort_words(words): """Sorts t...
分类:其他好文   时间:2014-10-24 16:26:57    阅读次数:166
centos: git clone提示Permission denied publickey 问题
问题: Initialized empty Git repository in /data1/mouxuan/fastsocket-private/.git/ Permission denied (publickey). fatal: The remote end hung up unexpectedly 解决步骤: 1、cd ~/.ssh 2、ssh-keygen...
分类:其他好文   时间:2014-10-24 11:06:30    阅读次数:256
Codeforces Round #242 (Div. 2) A. Squats
Pasha has many hamsters and he makes them work out. Today, n hamsters (n is even) came to work out. The hamsters lined up and each hamster either sat down or stood up. For another exercise, Pasha n...
分类:其他好文   时间:2014-10-24 11:06:01    阅读次数:238
【LeetCode】Set Matrix Zeroes 解题报告
今天看到CSDN博客的勋章换了图表,同时也增加显示了博客等级,看起来都听清新的,感觉不错! 【题目】 Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. click to show follow up. Follow up: Did yo...
分类:其他好文   时间:2014-10-24 11:01:34    阅读次数:219
UVA270-Lining Up
斜率斜率斜率......... #include #include #include #include #include #include #include using namespace std; struct node { int x,y; node(){} node(int a,int b){x=a;y=b;} }; int main...
分类:其他好文   时间:2014-10-23 19:20:00    阅读次数:187
leetcode - Rotate Image
You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Follow up: Could you do this in-place? class Solution { public: void rotate(std::vector >...
分类:其他好文   时间:2014-10-23 12:37:18    阅读次数:187
grep -q
grep -q用于if逻辑判断 安静模式,不打印任何标准输出。如果有匹配的内容则立即返回状态值0。zzx@sdcm152:~$ cat at.txt 04:55:00 up 12:02, 0 users, load average: 0.00, 0.01, 0.05zzx@sdcm152:...
分类:其他好文   时间:2014-10-23 12:10:06    阅读次数:241
try_to_wake_up()、default_wake_function()、autoremove_wake_function()函数详解
先介绍一个非常基础的函数:try_to_wake_up()此函数的作用是:从等待队列中唤醒一个进程,让后将其放到就绪队列中。staticinttry_to_wake_up(structtask_struct*p,intstate,intwake_flags)参数的含义:p:表示的是将要被唤醒的进程;state:可以被唤醒的进程的状态掩码;wake_flag..
分类:其他好文   时间:2014-10-23 06:58:36    阅读次数:253
wake_up()函数集合
唤醒等待队列中的等待进程的函数wake_up()函数的核心实现函数是__wake_up_common()函数。__wake_up_common(wait_queue_head_t*q,intmode,intnr_exclusive,intwake_flags,void*key)参数介绍:q:是等待队列头;mode:是进程的状态模式其取值为:TASK_INTERRUPTIBLE,TASK_UNITERRUP..
分类:其他好文   时间:2014-10-23 06:51:54    阅读次数:579
判断链表是否有环
Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 关键点:1)判断链表是否有环。 2)一个小坑在判断root和root的next是否为空上。 3)可以看为追及问题。最关键的坑在判断快走(每次走2步的节点),走1步会...
分类:其他好文   时间:2014-10-23 00:03:10    阅读次数:276
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