Addition

c program to add two numbers:-

                    C program to add two numbers: This c language program perform the basic arithmetic operation of addition on two numbers and then prints the sum on the screen. For example if the user entered two numbers as 5, 6 then 11 ( 5 + 6 ) will be printed on the screen.

#include<stdio.h>

void main()

{

   int a, b, c;

   printf("Enter two number to add\n");

   scanf("%d%d",&a,&b);

   c = a + b;

   printf("Sum of Enter number = %d\n",c);

   getch();

}

output:-

Addition without using third variable:-

#include<stdio.h>

void main()

{

   int a = 1, b = 2;

   /* Storing result of addition in variable a */

   a = a + b;

   /* Not recommended because original value of a is lost

    * and you may be using it some where in code considering it

    * as it was entered by the user.*/

   printf("Sum of a and b = %d\n", a);

   getch();

}

                                                                                                                                                                 C program to add two numbers repeatedly:-

                                                                                                                                                

#include<stdio.h>
void main()

{

   int a, b, c;

   char ch;

   while(1)

   {

      printf("Enter values of a and b\n");

      scanf("%d%d",&a,&b);

      c = a + b;

      printf("a + b = %d\n", c);

      printf("Do you wish to add more numbers(y/n)\n");

      scanf(" %c",&ch);

      if ( ch == 'y' || ch == 'Y' )

         continue;

      else

    break;

   }

getch();

}

Adding numbers in c using function:-

We have used lengthy information kind as it can manage thousands.

#include<stdio.h>
#include<conio.h>

long addition(long, long);

void main()
{
   long first, second, sum;

   scanf("%ld%ld", &first, &second);

   sum = addition(first, second);

   printf("%ld\n", sum);

   getch();
}

long addition(long a, lengthy b)
{
   long result;

   return = a + b;

  return result;
}