[ECP 1016]Tutorial 6 & 7 Question 1C

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#include <stdio.h>

int sum (int x, int y);
int diff (int x, int y);

int main(){

    int x, y;
    printf("Please enter two intergers: ");
    scanf("%d %d", &x, &y);

    printf("%d\n", sum(x,y));
    printf("%d\n", diff(x,y));

    getchar();
    getchar();
    getchar;
    return 0;

    }


int sum (int x,int y){
    int sum;
    sum = x+y;
    return sum;
    }

int diff (int x, int y){
    int sum;
    sum = x-y;
    return sum;
    }