计算整数的反转值，12345变为54321

#include <stdio.h>

int main()
{
      long int counter = 1234, temp, remainder, reverse;

      temp = counter;
      reverse = 0;

      while (temp > 0){
         remainder = temp % 10;
         reverse = reverse * 10 + remainder;
         temp /= 10;
      }

      printf("The reverse of %ld is %ld./n", counter, reverse);
      return 0;
}