AcWing 659. 区间

链接
https://www.acwing.com/problem/content/661/

思路
选择判断

#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 > 50 && 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;
}