Floor problem

题目网址：http://acm.fzu.edu.cn/problem.php?pid=2104

#include <cstdio>#include <cmath>int main(){    int t;    int n, l, r;    scanf("%d",&t);    while(t--)    {        scanf("%d%d%d",&n,&l,&r);        double sum = 0;        for(int i = l; i <= r; i++)        {            sum+=floor(n*1.0/i);        }        printf("%.0lf\n",sum);    }    return 0;}