题目描述

用if,else实现分支结构即可

样例

#include<cstdio>

using namespace std;

int main()
{
    double x;
    scanf("%lf",&x);
    if(x>=0&&x<=25)printf("Intervalo [0,25]");
    else if(x>25&&x<=50)printf("Intervalo (25,50]");
    else if(x>50&&x<=75)printf("Intervalo (50,75]");
    else if(x>75&&x<=100)printf("Intervalo (75,100]");
    else printf("Fora de intervalo");
    return 0;
}