C++ Exercises: Check three given integers and return true if one of them is 20 or more less than one of the others

Last update on August 12 2025 12:51:54 (UTC/GMT +8 hours)

20 Less Than Another Integer

Write a C++ program to check three given integers and return true if one of them is 20 lower than one of the others.

Sample Solution:

C++ Code :

#include <iostream>
using namespace std;

// Function 'test' takes three integers (x, y, z) as parameters
bool test(int x, int y, int z)
{
    // Returns true if the absolute difference between any two numbers among x, y, and z is greater than or equal to 20
    return abs(x - y) >= 20 || abs(x - z) >= 20 || abs(y - z) >= 20;
}

int main() 
{
    // Testing the 'test' function with different sets of numbers
    cout << test(11, 21, 31) << endl;  // Output: 1 (True, as differences between any two numbers are greater than or equal to 20)
    cout << test(11, 22, 31) << endl;  // Output: 1 (True, as differences between any two numbers are greater than or equal to 20)
    cout << test(10, 20, 15) << endl;  // Output: 0 (False, as no pair of numbers have differences greater than or equal to 20)

    return 0;    
}

Sample Output:

1 
1 
0

Visual Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a C++ program to check three integers and return true if one of them is exactly 20 less than another.
• Write a C++ program that reads three numbers and verifies if any number is 20 lower than one of the others.
• Write a C++ program to compare three integers and output a boolean indicating whether the difference between any two equals 20.
• Write a C++ program that tests three input values and returns true if the difference between any pair is exactly 20.

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