C program to add two numbers repeatedly

C program to add two numbers repeatedly

#include<stdio.h>
 
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;
   }
 
   return 0;
}

Adding numbers in c using function

#include<stdio.h>
 
long addition(long, long);
 
main()
{
   long first, second, sum;
 
   scanf("%ld%ld", &first, &second);
 
   sum = addition(first, second);
 
   printf("%ld\n", sum);
 
   return 0;
}
 
long addition(long a, long b)
{
   long result;
 
   result = a + b;
 
   return result;
}

We have used long data type as it can handle large numbers, if you want to add still larger numbers which doesn't fit in long range then use array, string or other data structure.