如何计算程序运行时间?
答案:1 悬赏:20
解决时间 2021-10-03 14:42
- 提问者网友:伴风望海
- 2021-10-03 10:44
如何计算程序运行时间?
最佳答案
- 二级知识专家网友:廢物販賣機
- 2021-10-03 11:20
#include "stdio.h"
#include "stdlib.h"
#include "time.h"
int main( void )
{
long i = 10000000L;
clock_t start, finish;
double duration;
/* 测量一个事件持续的时间*/
printf( "Time to do %ld empty loops is ", i );
start = clock();
while( i-- ) ;
finish = clock();
duration = (double)(finish - start) / CLOCKS_PER_SEC;
printf( "%f seconds\n", duration );
system("pause");
}
#include "stdlib.h"
#include "time.h"
int main( void )
{
long i = 10000000L;
clock_t start, finish;
double duration;
/* 测量一个事件持续的时间*/
printf( "Time to do %ld empty loops is ", i );
start = clock();
while( i-- ) ;
finish = clock();
duration = (double)(finish - start) / CLOCKS_PER_SEC;
printf( "%f seconds\n", duration );
system("pause");
}
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