#include <stdio.h>
void swap(int*a,int*b);
void sort(int*x,int*y);
int main(void) {
int x,y;
sort(&x,&y);
return 0;
}
void sort(int*x,int*y){
if(x<y)
swap(x,y);
}
void swap(int*a,int*b){
int temp;
temp=*a;
*a=*b;
*b=temp;
}
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