Addition

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#include<stdio.h>

int main()
{
int a, b, c;

printf("Enter two numbers to add\n");
scanf("%d%d",&a,&b);

c = a + b;

printf("Sum of entered numbers = %d\n",c);

return 0;
}

We can also do addition by utilising a function

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#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;
}
^