#include <stdio.h>
void swap(int *a,int *b){
int w;
w=*a;
*a=*b;
*b=w;
}
void sort(int *x, int *y){
if(*x<*y){ swap(x,y);
}}
int main() {
int x,y;
x=1;
y=2;
sort(&x,&y);
return 0;
}
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