题解 |分段计数

#include<stdio.h>

int main()
{
    int a, b;
    float BIM;
    while (~scanf("%d%d", &a, &b))
    {//为什么这个计算走不过去：1.是不是数据类型的问题
        //BIM = a/(b/100)/(b/100);失败写法
        //BIM=a/((b/100)*(b/100));
        BIM = a / (b / 100.0 * b / 100.0);//这种写法没加点之前也过不了，试点的问题
        if (BIM < 18.5)                   //可能结果是小数，结果丢失了
            printf("Underweight\n");
        if (BIM >= 18.5&&BIM <= 23.9)
            printf("Normal\n");
        if (BIM > 23.9&&BIM <= 27.9)
            printf("Overweight\n");
        if (BIM > 27.9)
            printf("Obese\n");
    }
    return 0;
}