#include<stdio.h>
int main()
void swop(int *p1,int *p2)
{ int num;
num=*p1;
*p1=*p2;
*p2=num;
}
{ void swop(int *p1,int *p2);
int a,b;
int *pointer_1,*pointer_2;
pointer_1=&a;pointer_2=&b;
scanf("%d,%d",&a,&b);
swop(pointer_1,pointer_2);
printf("%d,%d\n"a,b);
return 0;
}
求改正