#include<stdio.h>
void cal(int x, int y, int *sum, int *diff, int *mul, int *mod);
int main(void)
{
int x, y, sum, diff, mul, mod;
cal(x, y, &sum, &diff, &mul, &mod);
return 0;
}
void cal(int x, int y, int *sum, int *diff, int *mul, int *mod){
*sum=x+y;
*diff=x-y;
if(y>x){
*diff=-*diff;
}
*mul=x*y;
*mod=x/y;
}
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