Transfer from: http: //www.oschina.net/code/snippet_10896_2907
[Code] GuessBirthDate.cpp
/**
* 一段有趣的代码,猜生日。
* 运行程序,做5次选择,就能知道你的生日是哪一天。神奇!
*/
#include <iostream>
using namespace std;
int main()
{
int date = 0; // Date to be determind
char answer;
// Prompt the user for Set 1
cout << "Is your birth date in this set ?" << endl;
cout << "16 17 18 19/n" <<
"20 21 22 23/n" <<
"24 25 26 27/n" <<
"28 29 30 31" << endl;
cout << "Enter N for No and Y for Yes: ";
cin >> answer;
if (answer == 'Y')
date += 16;
// Prompt the user for Set 2
cout << "Is your birth date in this set ?" << endl;
cout << " 8 9 10 11/n" <<
"12 13 14 15/n" <<
"24 25 26 27/n" <<
"28 29 30 31" << endl;
cout << "Enter N for No and Y for Yes: ";
cin >> answer;
if (answer == 'Y')
date += 8;
// Prompt the user for Set 3
cout << "Is your birth date in this set ?" << endl;
cout << " 1 3 5 7/n" <<
" 9 11 13 15/n" <<
"17 19 21 23/n" <<
"25 27 29 31" << endl;
cout << "Enter N for No and Y for Yes: ";
cin >> answer;
if (answer == 'Y')
date += 1;
// Prompt the user for Set 4
cout << "Is your birth date in this set ?" << endl;
cout << " 2 3 6 7/n" <<
"10 11 14 15/n" <<
"18 19 22 23/n" <<
"26 27 30 31" << endl;
cout << "Enter N for No and Y for Yes: ";
cin >> answer;
if (answer == 'Y')
date += 2;
// Prompt the user for Set 5
cout << "Is your birth date in this set ?" << endl;
cout << " 4 5 6 7/n" <<
"12 13 14 15/n" <<
"20 21 22 23/n" <<
"28 29 30 31" << endl;
cout << "Enter N for No and Y for Yes: ";
cin >> answer;
if (answer == 'Y')
date += 4;
cout << "Your birth date is " << date << endl;
return 0;
}
[Code] test my birthday
[email protected]:GuessBirthDate$ ./GuessBirthDate
Is your birth date in this set ?
16 17 18 19
20 21 22 23
24 25 26 27
28 29 30 31
Enter N for No and Y for Yes: N
Is your birth date in this set ?
8 9 10 11
12 13 14 15
24 25 26 27
28 29 30 31
Enter N for No and Y for Yes: Y
Is your birth date in this set ?
1 3 5 7
9 11 13 15
17 19 21 23
25 27 29 31
Enter N for No and Y for Yes: N
Is your birth date in this set ?
2 3 6 7
10 11 14 15
18 19 22 23
26 27 30 31
Enter N for No and Y for Yes: N
Is your birth date in this set ?
4 5 6 7
12 13 14 15
20 21 22 23
28 29 30 31
Enter N for No and Y for Yes: Y
Your birth date is 12
Reproduced in: https: //my.oschina.net/dake/blog/196705