if else级联

#include<iostream>
using namespace std;
int main()
{
    double x;
    cin>>x;
    if(x>=0&&x<=25) cout<<"Intervalo [0,25]"<<endl;
    else if(x>25&&x<=50) cout<<"Intervalo (25,50]"<<endl;
    else if(x>25&&x<=75) cout<<"Intervalo (50,75]"<<endl;
    else if(x>75&&x<=100) cout<<"Intervalo (75,100]"<<endl;
    else cout<<"Fora de intervalo"<<endl;
    return 0;
}