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

Last update on June 26 2025 13:04:55 (UTC/GMT +8 hours)

Digit Appears in Both Integers

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

Visual Presentation:

C# Sharp: Basic Algorithm Exercises - Check two given integers, each in the range 10..99.

Sample Solution:-

C# Sharp Code:

using System; // Import the System namespace which contains fundamental types and base classes
using System.Linq; // Import the LINQ namespace for LINQ functionality

namespace exercises // Define a namespace called 'exercises'
{
    class Program // Define a class named 'Program'
    {
        static void Main(string[] args) // The entry point of the program
        {
            // Output the result of test function with different integer arguments
            Console.WriteLine(test(11, 21)); // Test with integers 11 and 21
            Console.WriteLine(test(11, 20)); // Test with integers 11 and 20
            Console.WriteLine(test(10, 10)); // Test with integers 10 and 10
            Console.ReadLine(); // Wait for user input before closing the console window
        }

        // Function definition of test function that takes two integers 'x' and 'y' and returns a boolean
        public static bool test(int x, int y)
        {
            // Check if any of the digits in 'x' or 'y' are equal (sharing the same digit place)
            return x / 10 == y / 10 || x / 10 == y % 10 || x % 10 == y / 10 || x % 10 == y % 10;
        }
    }
}

Sample Output:

True
False
True

Flowchart:

For more Practice: Solve these Related Problems:

Write a C# program to check if two integers share any common digits regardless of position.
Write a C# program to check if both integers have the same last digit or the same first digit.
Write a C# program to return true if any digit of one number appears in reverse order in the second number.
Write a C# program to verify if all digits in both numbers are distinct and return false otherwise.

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