统计输入的整数区间内回文数的个数


// 回文数.cpp : 定义控制台应用程序的入口点。

//

#include "stdafx.h"

#include<iostream>

using namespace std;

bool isHuiWen(int num){

 int temp;

 int sum = 0;

 temp = num;

 while (num)

 {

  sum = sum * 10 + num % 10;

  num /= 10;

 }

 if (temp == sum)

  return true;

 else

  return false;

}

int _tmain(int argc, _TCHAR* argv[])

{

 

 system("chcp 936");

 cout << "input 2 numbers:";

 int a, b;

 cin >> a >> b;

 int count = 0;

 for (int i = a; i <= b; i++){

  if (isHuiWen(i))

   count++;

 }

 cout << "there are " << count << " numbers between" << a << " and " << b << endl;

 system("pause");

 return 0;

}