HZAU 1000 Enrolling

原题
呵呵

#include <cstdio>
using namespace std;
int main()
{
  int t;
  scanf("%d", &t);
  for (int i = 0; i < t; i++) {
    int a, b;
    scanf("%d%d", &a, &b);
    double ans = double(b) / double(a);
    printf("%.2lf\n", ans);
  }
}