linux编程中,如果用到计时,可以用struct timeval获取系统时间。struct timeval的函数原型如下: struct timeval { __kernel_time_t tv_sec; /* seconds */ __kernel_suseconds_t tv_usec; /*...
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其他好文 时间:
2014-07-10 14:30:22
阅读次数:
334
Help Me Escape
Time Limit: 2 Seconds
Memory Limit: 32768 KB
Background
If thou doest well, shalt thou not be accepted? and if thou doest not well, sin lieth at the door. And unto th...
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其他好文 时间:
2014-07-05 11:05:59
阅读次数:
220
Patchouli's Spell Cards
Time Limit: 7 Seconds
Memory Limit: 65536 KB
Patchouli Knowledge, the unmoving great library, is a magician who has settled down in the Scarlet Devil Mansion (紅魔館...
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其他好文 时间:
2014-07-04 08:34:34
阅读次数:
347
二分+SPFA找负环
11090 - Going in Cycle!!
Time limit: 3.000 seconds
#include
#include
#include
#include
#include
using namespace std;
const double INF=1000000000.;
struc...
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其他好文 时间:
2014-07-02 08:30:41
阅读次数:
216
Idiomatic Phrases Game
Time Limit: 2 Seconds Memory Limit: 65536 KB
Tom is playing a game called Idiomatic Phrases Game. An idiom consists of several Chinese characters and has a certain me...
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其他好文 时间:
2014-07-02 08:11:52
阅读次数:
167
Consecutive Blocks
Time Limit: 2 Seconds
Memory Limit: 65536 KB
There are N (1 ≤ N ≤ 105) colored blocks (numbered 1 to
N from left to right) which are lined up in a row. And the i-th b...
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其他好文 时间:
2014-07-01 06:51:52
阅读次数:
218
先看一段代码
#include
#include
#include
#include
#include
static int count = 0;
void set_timer()
{
struct itimerval itv;
itv.it_value.tv_sec = 3; //timer start after 3 seconds later
itv.it...
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系统相关 时间:
2014-06-30 10:31:41
阅读次数:
365
example: ./netspeed eth0
1 #!/bin/bash
2
3 INTERVAL="1" # update interval in seconds
4
5 if [ -z "$1" ]; then
6 echo
7 echo usage: $0 [network-interface]
8 echo
9 echo ...
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系统相关 时间:
2014-06-25 07:24:00
阅读次数:
213
Dynamic Rankings
Time Limit: 10 Seconds
Memory Limit: 32768 KB
The Company Dynamic Rankings has developed a new kind of computer that is no longer satisfied with the query like to simply...
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其他好文 时间:
2014-06-22 17:04:16
阅读次数:
182
1. 用预处理指令#define 声明一个常数,用以表明1年中有多少秒(忽略闰年问题)#define SECONDS_PER_YEAR (60 * 60 * 24 * 365)UL我在这想看到几件事情:1). #define 语法的基本知识(例如:不能以分号结束,括号的使用,等等)2). 懂得预处理...
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编程语言 时间:
2014-06-22 10:51:29
阅读次数:
236