생일 맞추기

#include <iostream>
using namespace std;

int main(){

int day = 0;
char answer;

cout << "When is your birthday?" <<endl;

cout << "  <CARD 1>\n 1  3  5  7\n 9 11 13 15\n17 19 21 23\n25 27 29 31\n" << endl;
cout << "Enter N/n for No and Y/y for Yes: ";
cin >> answer;

if (answer == 'Y' || answer == 'y')
day += 1;

// Prompt the user for Set 2
cout << "  <CARD 2>\n 2  3  6  7\n10 11 14 15\n18 19 22 23\n26 27 30 31\n" << endl;
cout << "Enter N/n for No and Y/y for Yes: ";
cin >> answer;
if (answer == 'Y' || answer == 'y')
day += 2;

// Prompt the user for Set 3
cout << "  <CARD 3>\n 4  5  6  7\n12 13 14 15\n20 21 22 23\n28 29 30 31\n" << endl;
cout << "Enter N/n for No and Y/y for Yes: ";
cin >> answer;
if (answer == 'Y' || answer == 'y')
day += 4;

// Prompt the user for Set 4
cout << "  <CARD 4>\n 8  9 10 11\n12 13 14 15\n24 25 26 27\n28 29 30 31\n" << endl;
cout << "Enter N/n for No and Y/y for Yes: ";
cin >> answer;
if (answer == 'Y' || answer == 'y')
day += 8;

// Prompt the user for Set 5
cout << "  <CARD 5>\n16 17 18 19\n20 21 22 23\n24 25 26 27\n28 29 30 31\n" << endl;
cout << "Enter N/n for No and Y/y for Yes: ";
cin >> answer;
if (answer == 'Y' || answer == 'y')
day += 16;

cout << day;
system("pause");
return 0;
}