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iOS开发ARC内存管理
本文的主要内容:ARC的本质ARC的开启与关闭ARC的修饰符ARC与BlockARC与Toll-Free BridgingARC的本质ARC是编译器(时)特性,而不是运行时特性,更不是垃圾回收器(GC)。Automatic Reference Counting (ARC) is a compiler...
分类:移动开发   时间:2015-06-26 10:56:25    阅读次数:219
Hyper LogLog介绍
大数据计算:如何仅用1.5KB内存为十亿对象计数 - Hyper LogLog 算法 Big Data Counting: How To Count A Billion Distinct Objects Using Only 1.5KThis is a guest post by ...
分类:其他好文   时间:2015-06-24 16:20:00    阅读次数:111
Counting sheep...
Counting sheep...Description:Consider an array of sheep where some sheep may be missing from their place. We need a function that counts the number of...
分类:其他好文   时间:2015-06-24 14:32:55    阅读次数:131
HDU 3887 Counting Offspring(DFS序求子树权值和)
Problem Description You are given a tree, it’s root is p, and the node is numbered from 1 to n. Now define f(i) as the number of nodes whose number is less than i in all the succeeding nodes of nod...
分类:编程语言   时间:2015-06-23 23:14:09    阅读次数:190
hdu 2952 Counting Sheep
dfs...
分类:其他好文   时间:2015-06-22 17:54:04    阅读次数:93
UVa1225 Digit Counting
#include #include int main(){ int T, N, i, j; int a[10]; scanf("%d", &T); while (T--) { memset(a, 0, sizeof(a)); scanf("%d", &N); for (i = 1; i 0)...
分类:其他好文   时间:2015-06-21 00:47:44    阅读次数:153
分子量(Molar Counting, ACM/ICPC Seoul 2007, UVa1586)
An organic compound is any member of a large class of chemical compounds whose molecules contain carbon. The molar mass of an organic compound is the mass of one mole of the organic compound. The molar...
分类:其他好文   时间:2015-06-19 10:39:58    阅读次数:145
数数字(Digit Counting, ACM/ICPC Danang 2007, UVa 1225)
把前n(n<=10000)个整数顺次写在一起:123456789101112…数一数0~9各出现多少次(输出10个整数,分别是0, 1, …, 9出现的次数)。#include #include #define maxn 10000char s[maxn]; int act[10];int main() { int i; while(scanf...
分类:其他好文   时间:2015-06-18 19:48:09    阅读次数:139
iOS 关闭ARC
对整个项目关闭在Bulid Settings 中搜索objective-C Automatic Reference Counting设置为NO文件报错1.project-Build Phases-Compile Sources2.找到需要设置的mm文件,在右边Compiler Flag里把-fobj...
分类:移动开发   时间:2015-06-12 16:40:04    阅读次数:169
tc 146 2 RectangularGrid(数学推导)
SRM 1462500RectangularGridProblem StatementGiven thewidthandheightof a rectangular grid, return the total number of rectangles (NOT counting squares) ...
分类:其他好文   时间:2015-06-11 16:16:18    阅读次数:144
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