输入一个正整数，要求判断这个数是否是对称数（比如121，123321，1456541）。要求不能调用字符串库函数

#include <stdio.h>
#include <stdlib.h>
#include <memory.h>

int main(int argc, char* argv[])
{
 while(1)
 {
  unsigned int nInt = 0;
  scanf("%d",&nInt);
  
  if(0 == nInt)
   break;

  char szDigit[32];
  memset(szDigit,0,sizeof(szDigit));
  unsigned int nIntT = nInt;
  
  int nCount = 0;
  while(nIntT > 0 && nCount < sizeof(szDigit) - 1)
  {
   szDigit[nCount] = nIntT % 10;
   nIntT /= 10;
   nCount++;
  }
  
  bool bRel = true;
  for(int i = 0; i<nCount/2;i++)
  {
   if(szDigit[i] != szDigit[nCount - i - 1])
    bRel = false;
  }
  
  if(bRel)
   printf("%d is Y\n",nInt);
  else
   printf("%d is N\n",nInt);

 }

 system("pause");
 return 0;
}