一个很简单的问题请大家帮忙
#include <stdio.h>int main(void)
{
int a,b;
while(scanf("%d %d", &a, &b)!=EOF)
{
printf("%d\n", a+b);
}
return 0;
}
这个程序需要怎么输入才能让程序结束
2011-02-24 10:31
2011-02-24 11:54
2011-02-24 12:00
2011-02-24 12:12

2011-02-24 12:24
2011-02-24 15:26

2011-02-24 15:40
2011-02-24 15:55

2011-02-24 19:35
2011-02-24 19:40