Gauss elimination:#include #include #include #include using namespace std;const int MAXN = 50;int a[MAXN][MAXN];//增广矩阵int x[MAXN];//解集bool free_x[MAXN...
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其他好文 时间:
2014-07-29 11:47:16
阅读次数:
225
盗用名字:C题题目都没看懂, B:You are given a long longn. Return the largest divisor ofnthat is a perfect square. That is, the correct return value is x if and ...
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其他好文 时间:
2014-07-29 10:54:36
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204
总结于 IOS Tuturial 中 ARC两章,详细在dropbox pdf 文档。Toll-Free Bridging当你在Objective-C和Core Foundation对象之间进行转换时,就需要使用Bridge cast。今天的多数应用很少需要使用Core Foundation,大多数...
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其他好文 时间:
2014-07-28 13:50:50
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367
http://acm.hdu.edu.cn/showproblem.php?pid=1398
题意:有价值为1^2,2^2....7^2的硬币共17种,每种硬币都有无限个。问用这些硬币能够组成价值为n的钱数共有几种方案数。
母函数:
#include
#include
#include
#include
#include
#include
#include
#i...
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其他好文 时间:
2014-07-28 00:03:19
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219
Problem Description
FatMouse has stored some cheese in a city. The city can be considered as a square grid of dimension n: each grid location is labelled (p,q) where 0 <= p < n and 0 <= q < n. At e...
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其他好文 时间:
2014-07-28 00:02:49
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319
heap block 引发的思考
问题背景:
Implicit Free Lists
Any practical allocator needs some data structure that allows it to distinguish block boundaries and to distinguish between allo...
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其他好文 时间:
2014-07-27 23:38:29
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452
Implement int sqrt(int x).Compute and return the square root of x.线性查找会TLE。用二分查找。注意溢出的处理。全部都改成long long. 1 class Solution { 2 public: 3 int sqrt(i...
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其他好文 时间:
2014-07-27 10:41:02
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181
Given an integer n, generate a square matrix filled with elements from 1 to n2 in spiral order.For example, Given n = 3,You should return the followin...
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其他好文 时间:
2014-07-27 10:21:02
阅读次数:
219
最近发现几个好用的工具,顺便总结下。procps-ng: top, free, ps, pgrep, vmstat ...sysstat: iostat, sar ...lsof,iftop,mtr,htopcv:新发现的监控cp,dd等即时速度的nmon:从AIX鼎鼎大名的topas移植过来的ds...
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系统相关 时间:
2014-07-27 10:04:32
阅读次数:
333
http://acm.hdu.edu.cn/showproblem.php?pid=1518
Square
Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 8343 Accepted Submission(s): 270...
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其他好文 时间:
2014-07-26 17:14:32
阅读次数:
254