C Program To Find Largest of Three Numbers | C Programming Examples - 15

How to Find Largest of Three Numbers in C Programming | C Programming Examples - 15

Write a C program to Find Largest of Three Numbers. How to Find Largest of Three Numbers in C programming. Logic to Find Largest of Three Numbers in C program.

We will first take three numbers as input from user using scanf function then finds the biggest number from these three variables using following equations.

• num1 is the largest number if((num1>num2) && (num1>num3))
• num2 is the largest number if((num2>num1) && (num2>num3))
• else num3 is the largest number

This is a very simple program for beginners to understand how if-else condition works and how to find bigger number of three variables in c programming language. 

C Programming Examples:

1. Write a C Program to Find Largest of Three Numbers

2. C program to Find Largest of Three Numbers

3. How to Find Largest of Three Numbers in C Programming

C Program to Find Largest of Three Numbers :

#include<stdio.h>
int main()
{
  int num1,num2,num3;
  printf("Enter a number 1\n");
  scanf("%d",&num1);
  printf("Enter a number 2\n");
  scanf("%d",&num2);
  printf("Enter a number 3\n");
  scanf("%d",&num3);
  if((num1>num2) && (num1>num3))
  {
     printf("%d is bigger\n",num1);
  }
  else if((num2>num1) && (num2>num3))
  {
    printf("%d is bigger\n",num2);
  }
  else
  {
    printf("%d is bigger\n",num3);
  }
}

Output: 

Enter a number 1

-200

Enter a number 2

345

Enter a number 3

123

345 is bigger

Explanation of Finding Largest of Three Numbers in C Programming :

Initializes :

num1-for storing number 1

num2-for storing number 2

num3- for storing number 3

Using if to check whether the number 1(num1) is greater than both num2 and num3 and if num1 is greater it is printed as bigger of the three numbers.

The same step above is repeated for num2 and num3.

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