C語言實現數組中數字收尾交換

 

#include <stdio.h>
#define MAX 10

int exchange(int *firstNumber , int *lastNumber )
{
        int temp = 0;
        for( ; firstNumber < lastNumber ; firstNumber++ , lastNumber--)
        {
                temp = *firstNumber ;
                *firstNumber = *lastNumber ;
                *lastNumber = temp;
       }
}

int main(int argc,char **argv)
{
       int i=0  , a[MAX];
       for(i=0 ; i < MAX ; i++)
       {
           a[i] = i;
       }
       exchange(&a[0] , &a[MAX-1]);
       for(i = 0 ; i < MAX ; i++)
       {
              printf("%3d",a[i]);
       }
       printf("\n");
       return 0;
}