#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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