C program to find the largest number among three numbers | My CS Tutorial

In this tutorial we will learn how write a C program that find the greatest number among three numbers.
We will write a C program that find the greatest number among three numbers.

Solution:

• In this program we will use two header files.
• In this program we will use three variables a,b and c.
• We declared these three variables a,b and c in int data type.
• Then we will enter the value of a and b.
• We will use if else statement with three conditions which is (a>b),(a>c) and (b>c).
• And after it we will print the statement or body.

• When we use these statement the condition execute own statement.
• When the if condition is false it execute else statement.

C program code



#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,c;
clrscr();

printf("\n Enter the value of a=");
scanf("%d",&a);

printf("\n Enter the value of b=");
scanf("%d",&b);

printf("\n Enter the value of c=");
scanf("%d",&c);

if(a>b)
{
if(a>c)
printf(" a is greatest");
else
printf(" c is greatest");
}

else
{
if(b>c)
printf(" b is greatest");
else
printf(" c is greatest");
}

getch();
}



Output 1:

Output 2:

Output 3:

we will find the greatest number among three numbers so we take three variables a,b and c and use the if else statement. We use some conditions to find the greatest number.

  When we use if or else statement inside a if statement or else statement this is called nesting of if else statement.

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