# C Program to Find the Maximum of Two Numbers using Switch Case

In this article, we will learn how to find the maximum of two numbers using switch case statements in C programming.

The program takes two integer inputs from the user and then prints the maximum of the two.

Sample Input:

``````Enter first number: 20
Enter second number: 40``````

Expected output:

``40 is Largest``

You can use the following approach to find the maximum of two numbers using the `switch...case` statement:

• Declare two integer variables `num1` and `num2` to store the two numbers. Also declare a third integer variable `exp` which we will use inside the switch statement.
• Take the first number from the user using the scanf() function and store it in the `num1` variable.
• Take the second number from the user using the scanf() function and store its value in the `num2` variable.
• Store the value of the `num1 > num2` expression in the third variable `exp`. The expression `num1 > num2` returns 1 if `num1` is larger than `num2`, otherwise, it returns 0.
• Put the result of the `num > num2` expression i.e. `exp` variable in the switch statement.
• Put two cases, case 1 & case 0, inside the switch statement. The `case 1` runs if num1 is greater than num2, otherwise, the `case 0` runs.

The following C program shows how you can use the `switch...case` statement to find the largest of the two numbers:

```// C program to find the maximum of the two numbers using Switch Case
#include <stdio.h>

int main(){

// Declare variables
int num1, num2, exp;

// Get the first number
printf("Enter first number: ");
scanf("%d", &num1);

// Get the second number
printf("Enter second number: ");
scanf("%d", &num2);

// Returns 1 if num1 is greater than num2, otherwise, returns 0
exp = num1 > num2;

switch(exp){  // Can become 1 or 0 only

// Runs if num1 > num2
case 1:
printf("%d is Largest", num1);
break;

// Runs if num1 < num2
case 0:
printf("%d is Largest", num2);
break;

}
return 0;
}```

Output:

```Enter first number: 20
Enter second number: 40
40 is Largest```

Please note that this program does not give the correct output if both numbers are equal to each other. If you also want to put an equality check, use the if…else statements instead.

## Author

• Hi, My name is Manoj Kumar. I am a full-stack developer with a passion for creating robust and efficient web applications. I have hands-on experience with a diverse set of technologies, including but not limited to HTML, CSS, JavaScript, TypeScript, Angular, Node.js, Express, React, and MongoDB.