解题思路:
简单题,求解 C(n+m, m) .
代码:
#include
#include
using namespace std;
long long c(long long n,long long m)
{
long long ans=1;
for(int i=1;i<=m;i++)
ans=ans*(n--)/i;
return ans;...
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其他好文 时间:
2014-07-23 13:18:27
阅读次数:
234
今天下载alipay无线应用sdk,首选感觉:我靠,藏的真深!下载后commad+R发现报错了。具体错误信息如图:解决办法是将library search paths 里面的东西去掉所有的\\\ 坑爹啊!如图:
分类:
移动开发 时间:
2014-07-22 22:54:57
阅读次数:
242
Now I believe thoughts leading to DP is brutal DFS.. DFS is brutal force enumeration, but that's too much and naive. We need pruning. So, DFS + Prunin...
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其他好文 时间:
2014-07-22 22:40:34
阅读次数:
183
Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty space i...
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其他好文 时间:
2014-07-22 00:28:36
阅读次数:
169
最近在学习用Python开发web,使用的是web框架,在win8.1平台下安装SAE和Flask的时候总是在ntpath.py这个UnicodeDecodeError模块报错。84行 result_path = result_path+ p_path 显示的错误就是UnicodeDecode...
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其他好文 时间:
2014-07-21 08:20:06
阅读次数:
212
It is said that the people of Menggol lived in caves. A tribe's caves were connected to each other with paths. The paths were so designed that there w...
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其他好文 时间:
2014-07-19 19:03:48
阅读次数:
344
FMDatabase 的使用方法- (NSString*) getPath { NSArray* paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES) ; return[[pathso...
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移动开发 时间:
2014-07-18 10:08:04
阅读次数:
342
Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty space i...
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其他好文 时间:
2014-07-16 18:09:43
阅读次数:
209
All relative paths in this config are relative to php's install prefix
Pid file
/usr/local/php/logs/php-fpm.pid
Error log file
/usr/local/php/logs/php-fpm.log
Log level
notice
Whe...
分类:
Web程序 时间:
2014-07-13 16:26:05
阅读次数:
248
Algorithm.( Augmenting Path Algorithm )
Input:
An X-Y bigraph G, a matching M in G,
and the set U of M-unsaturated vertices in X.
Idea:
Explore M-alternating paths form...
分类:
其他好文 时间:
2014-07-10 23:03:47
阅读次数:
211