c语言基本问题

Question

如图，求个代码

Answer 1

完整程序如下:
#include<stdio.h>
int main( )
{
int k,n,i,j;
static float ci;
int m;
scanf("%d",&k);
for (i=0;i<k;i++){
scanf("%d",&n); m=0;
for (j=0;j<n;j++) {
scanf("%f",&ci); if (ci>=60)m++;
};
printf("%.3f%%\n", (float)m/n*100.0);
};

return 0;
}