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