C Program to Find Maximum Between Two Numbers Using

Understanding the Problem

• The goal is to write a C program that takes two numbers as input and determines the larger of the two.
• We’ll explore different approaches to achieve this:
  • Using if-else statements
  • Using conditional operators
  • Using a function

Method 1: Using if-else Statements

Steps:

1. Include header file:

C

#include <stdio.h>

2. Declare variables:

C

int num1, num2, max;

3. Get input from the user:

C

printf("Enter two numbers: ");
scanf("%d %d", &num1, &num2);

4. Apply logic using if-else:

C

if (num1 > num2) {
    max = num1;
} else {
    max = num2;
}

5. Print the result:

C

printf("The maximum number is: %d", max);

Method 2: Using Conditional Operators

Code:

C

#include <stdio.h>

int main() {
    int num1, num2, max;

    printf("Enter two numbers: ");
    scanf("%d %d", &num1, &num2);

    max = (num1 > num2) ? num1 : num2; // Conditional operator

    printf("The maximum number is: %d", max);

    return 0;
}

Method 3: Using a Function

Code:

C

#include <stdio.h>

int findMax(int num1, int num2) {
    if (num1 > num2) {
        return num1;
    } else {
        return num2;
    }
}

int main() {
    int num1, num2, max;

    printf("Enter two numbers: ");
    scanf("%d %d", &num1, &num2);

    max = findMax(num1, num2); // Call the function

    printf("The maximum number is: %d", max);

    return 0;
}

Key Points:

• All three methods provide correct results.
• Choose the method based on code readability and preferences.
• Functions promote code reusability and modularity.
• Conditional operators offer a concise way to write conditional expressions.
• Always test your code with various inputs to ensure its correctness.