#include <stdio.h>
void swap(int *x,int *y);
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 *x,int*y){
int w;
w=*x;
*x=*y;
*y=w;
}
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