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