C# Program to Find the largest among three numbers.

In many programming scenarios, you might need to determine the largest number among a set of values. This is a common problem and can be solved using conditional statements. In this article, we'll learn how to write a C# program to find the largest among three numbers.


Problem Statement: Write a C# program that finds the largest among three given numbers.

Example:

Input: num1 = 10, num2 =12, num3 = 7
Output: Largest Number = 12

Input: num1 = 8, num2 = -2, num3 = 5
Output: Largest Number = 8

C# Code to Find the Largest Number Among Three.

//C-sharp code to find largest among three numbers
using System;

namespace LargestNumberFinder
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.Write("Enter three numbers: ");
            int num1 = Convert.ToInt32(Console.ReadLine());
            int num2 = Convert.ToInt32(Console.ReadLine());
            int num3 = Convert.ToInt32(Console.ReadLine());

            int largest = num1;

            if (num2 > largest)
            {
                largest = num2;
            }

            if (num3 > largest)
            {
                largest = num3;
            }

            Console.WriteLine($"Largest number among {num1}, {num2}, and {num3} is {largest}.");
        }
    }
}
Output:
Enter three numbers: 10
23
9
Largest number among 10, 23, and 9 is 23.

Code Explanation:
  • The program takes three integers as input using the Console.Write and Console.ReadLine functions.
  • It initializes the largest variable with the value of the first input.
  • Using a series of if statements, it compares the other two inputs with the largest variable and updates it if a larger value is found.

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