Write a C++ program to determine the smallest of three numbers by taking user input.

Code:

#include <iostream>

using namespace std;

int main(){

    float x, y, z;

    cout << "Enter the 1st Number: ";

    cin >> x;

    cout << "Enter the 2nd Number: ";

    cin >> y;

    cout << "Enter the 3rd Number: ";

    cin >> z;

    if (x<y && x<z)

        cout << x << " is the smallest number.";

    else if (y<x && y<z)

        cout << y << " is the smallest number.";

    else

        cout << z << " is the smallest number.";

}

Output: 

Enter the 1st Number: 3

Enter the 2nd Number: 4

Enter the 3rd Number: 8

3 is the smallest number.

Process returned 0 (0x0)   execution time : 2.669 s

Press any key to continue.