Question

In C++ program that inputs three integers and displays the smallest and largest numbers. It should pass the numbers to two functions. A value returning function determines the smallest number and returns it, and a void function determines the largest number and displays it.

Sample run:

Enter three numbers: 9 10 7

The smallest number is:7

The largest number is: 10

Answer 1

#include <iostream>

using namespace std;

int largest3(int n1, int n2, int n3) {
    int max = n1;
    if (n2 > max) {
        max = n2;
    }
    if (n3 > max) {
        max = n3;
    }
    return max;
}

int smallest3(int n1, int n2, int n3) {
    int min = n1;
    if (n2 < min) {
        min = n2;
    }
    if (n3 < min) {
        min = n3;
    }
    return min;
}

int main() {
    int n1, n2, n3;
    cout << "Enter three numbers: ";
    cin >> n1 >> n2 >> n3;
    cout << "The smallest number is: " << smallest3(n1, n2, n3) << endl;
    cout << "The largest number is: " << largest3(n1, n2, n3) << endl;
    return 0;
}