#include <stdio.h>
void cal(int x, int y, int *sum, int *diff, int *mul, int *mod);
int main(void) {
int x=1;
int y=2;
int sum=0;
int diff=0;
int mul=0;
int mod=0;
cal(x,y,&sum,&diff,&mul,&mod);
printf("sum = %d\n diff = %d\n mul = %d\n mod = %d\n",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;
*mul=x*y;
*mod=x/y;
}
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