c++ 猜数字游戏猜1-100间的一个整数

一本c++书中的练习题

所用代码：geofhagopian.net/CS007A/CS7A-F15/GH_PPP4-e4.cpp

测试时发现一个bug，比如100就猜不出来，小修了一下

#include "../std_lib_facilities.h"


int main()
{
    cout << "nThink of a number between 1 and 100";
    int left = 1, right = 100;
    bool found = 0, yes = 0;
    while (!found) {
        cout << "nIs your number " << (left + right) / 2 << "? ";
        cin >> yes;
        if (yes) {
            found = 1;
            break;
        }
        cout << "nIs your number greater than " << (left + right) / 2 << "? ";
        cin >> yes;
        if (yes) left = (left + right) / 2 + 1;
        else right = (left + right) / 2;
    }
    if (found) cout << "nHooray, you found the number is " << (left + right) / 2;
    else cout << "nFailure!";


}