C++ Exercises: Check two given integers, each in the range 10..99

Last update on April 07 2025 12:56:44 (UTC/GMT +8 hours)

Shared Digit Between Two Integers (Range 10–99)

Write a C++ program to check two given integers. Each integer is in the range 10..99. Return true if a digit appears in both numbers, such as the 3 in 13 and 33.

Sample Solution:

C++ Code :

#include <iostream>
using namespace std;

// Function 'test' takes two integers (x, y) as parameters
bool test(int x, int y)
{
    // Checks if the tens place of x equals the tens place of y
    // OR if the tens place of x equals the ones place of y
    // OR if the ones place of x equals the tens place of y
    // OR if the ones place of x equals the ones place of y
    return x / 10 == y / 10 || x / 10 == y % 10 || x % 10 == y / 10 || x % 10 == y % 10;
}

int main() 
{
    // Testing the 'test' function with different sets of numbers
    cout << test(11, 21) << endl; 
    cout << test(11, 20) << endl;
    cout << test(10, 10) << endl;

    return 0;    
}

Sample Output:

1 
0 
1

Visual Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a C++ program to check if two integers between 10 and 99 share any common digit and return true if they do.
• Write a C++ program that reads two two-digit numbers and outputs true if any digit appears in both numbers.
• Write a C++ program to determine if there is a shared digit between two input integers within the range 10 to 99.
• Write a C++ program that examines two integers (10–99) and prints true if they have at least one digit in common.

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