#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);
printf("sum %d\ndiff %d\nmul %d\nmod %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;
if(x-y<0){
*diff=-(x-y);
}
else {
*diff=x-y;
}
*mul=x*y;
*mod=x%y;
}
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