杭电acm2061

我把cre，sco写成 int 类型会超时，不解。

#include <stdio.h>int main() {int n, k,  flag;double a1, a2, cre, sco;scanf("%d", &n);while(n--) {a1 = 0.0;a2 = 0.0;flag = 0;scanf("%d", &k);while(k--) {scanf("%*s%lf%lf", &cre, &sco);if(sco<60) {flag = 1;}a1 += cre * sco;a2 += cre;}if(flag==1)printf("Sorry!\n");elseprintf("%.2lf\n", a1 / a2);if(n)printf("\n");}return 0;}