Question

• This program is part 1 of a larger program. Eventually, it will be a complete Flashcard game.
• For this part, the program will
  • Prompt the user for a file that contains the questions – use getline(cin, fname) instead of cin >> fname to read the file name from the user. This will keep you in sync with the user’s input for later in the program
    • The first line is the number of questions (just throw this line away this week)
    • The second line is question 1
    • The third line is answer 1
    • The fourth line is question 2
    • The fifth line is answer 2 and so on,
  • Read the first question/answer from the file
    • Note you can use getline(yourInputStream, yourString) to read an entire line
  • Prompt the user for the answer to the question
    • The prompt is the question from the file, followed by “? “
    • The user gets 3 tries to get it correct
    • Make an enum to remember whether the user is answering, correct, or incorrect
      • Initially the user is answering
      • If answered incorrectly 3 times, then the user is incorrect
      • If answered correctly, then the user is correct
    • Checking if the answer is correct includes some string manipulation
      • Take the line that the user entered, remove all leading whitespace, remove all trailing whitespace, and convert everything to lowercase
      • By doing this, you can simply compare the user’s answer to the correct answer with an ==
      • Note: isspace(c) returns true if c is a whitespace character like a space or tab, false otherwise
    • Use functions as appropriate – you should have more than just main()

• This program is part 2 of the Flashcard program. You should be building on last week’s Flash.cpp.
• For this part, the program will
  • Use parallel arrays to read all of the questions from the file
    • You may assume that the maximum number of questions/answer pairs will be 10
    • Note that when you read the first integer, the read only consumes the number. The newline character still needs to be read, so you’ll still need to do a getline() after reading the number of cards before reading the questions/answers.
  • Loop through the questions twice. The first time present each question and prompt for the answer. Give the user up to 3 chances like the first part of this assignment.
    • You’ll need to remember which questions are answered correctly (I suggest using another parallel array)
    • After each question has been asked, loop again through the questions. But this time, only ask the questions that were answered incorrectly on the first pass.
  • After looping through the questions 2 times, print a list of answers that were never entered correctly (one per line). Print “Study:” before the list of answers (even if the user got them all correct, because it is always a good reminder to Study)

Answer 1

#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <algorithm>

using namespace std;

string getRandWord();
void checkLetter(char&, string&, int&, string&);

int main() {

  
string RandomWord = getRandWord();
string hiddenWord = "";

unsigned long int _length_ = RandomWord.length();
int chances = int(_length_)+1;
char newLetter;
hiddenWord.append((_length_),'_');

cout << "The Word is "<< _length_ <<" letters long." << endl;

  
while(chances > 0){
  
cin >> newLetter;
checkLetter(newLetter, RandomWord, chances, hiddenWord);

  
if(hiddenWord == RandomWord){
cout << "Congratulations! You won the game." << endl;
break;
}
  
chances--;
}

return 0;
}

void checkLetter(char &newLetter, string &randstr, int &strlen, string &hiddenWord){

string::iterator it;

for(auto it = randstr.begin(); it != randstr.end();++it){

if(*it == newLetter){
  
hiddenWord.at(it - randstr.begin()) = newLetter;
}
}
cout << hiddenWord << endl;
}

string getRandWord(){
string filePath = "/Users/nedimkanat/XCODE/testcpp/testcpp/";

enum sizes {
COUNTER = 0,
ARRAY_SIZE = 5
};

srand((unsigned)time(NULL));

  
int randint = rand() % ARRAY_SIZE;
string str;

  
vector<string> arr;

ifstream file(filePath+"words.txt");
int counter = COUNTER;

  
if (file.is_open()){
while (getline(file,str) && counter < ARRAY_SIZE){
arr.push_back(str);
counter++;
}
file.close();
} else {
cout << "File is not open" << endl;
}

if(arr.empty()){
cout << "CANCER" << endl;
}
return arr.at(randint);
}