Cambio de variables

#include <stdio.h>

void triple(int*,int*,int*);
main()
{
    int a=10,b=3,c=15;
    triple(&a,&b,&c);
    printf("a=%d  b=%d  c=%d",a,b,c);
}



void triple( int*o,int*p, int*q)
{
    int z=*o;
    *o=*p;
    *p=*q;
    *q=z;



}