Thoughts can deceive people, programs do not.

From: http://blog.csdn.net/ndzjx/article

#include <iostream>

using namespace std;

int nCount = 10;
int nBegin = 5;
int nEnd = nBegin + nCount;
int narr[25] = { 1, 13, 3, 5, 8,
                 9, 2, 4, 13, 22,
                 44, 23, 7, 9, 0,
                 32, 13, 12, 6, 15,
                 14, 21, 16, 18, 4};
intmain()
{
    // I want to change the following for to the above for, thinking it is simpler,
    // Actually, it's not right (the data source analyzed is large, and the results obtained have increased)
    // Remember: refactoring must write a test applet! Thoughts can deceive people, programs do not.
    for (int i  = 0; i < 25; ++i)
    {
        int nValue = narr[i];
        if (nValue < nBegin || nValue >= nEnd)
        {
            cout << nValue << endl;
        }
    }


    for (int i = nBegin; i < nEnd; ++i)
    {
        bool bFlag = false;
        for (int j = 0; j < 25; ++j)
        {
            if (narr[j] == i)
            {
                bFlag = true;
                break;
            }
        }
        if (!bFlag)
        {
            cout << i << endl;
        }
    }
    return 0;
}