Question

I need help with a c++ function. I need this function to read in an input file containing multiple choice questions/potential answers and to store that data into a 2d array of strings. This function cannot use classes or vectors or anything "advanced". The input file will have 0-50 questions; each with 4 multiple choice responses. The array should be titled questionArray. (it's a .txt file)

update:

What is my name?

John

Bob

Lance

Mike

What is my favorite animal?

Cat

Dog

Lizard

Tiger

Answer 1

Thanks for the question, here is the code in CPP, I have commented the code so that you can folow the logic, understand and learn the concepts

Let me know for any help with any other questions.

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#include<string>

#include<fstream>

#include<iostream>

using namespace std;

int main(){

               

                char filename[] ="D:\\questions.txt"; // input text file that needs to be read

               

                string questionArray[50][5]; // there wll be 5 columns and 50 rows 2D string array

                int index = 0;

                // each row will reprsent 1 question,

                // first column will be the question

                // 2nd to 5th columns will contain the 4 options

               

                ifstream infile(filename);

                if(infile.is_open()){

                               

                                while(getline(infile,questionArray[index][0],'\n')){ // read the first question

                                                getline(infile,questionArray[index][1],'\n'); // read the option 1 is next line

                                                getline(infile,questionArray[index][2],'\n');// read the option 2 is next line

                                                getline(infile,questionArray[index][3],'\n'); // read the option 3 is next line

                                                getline(infile,questionArray[index][4],'\n'); // read the option 4 is next line

                                               

                                                index+=1;

                                }

                               

                                infile.close();

                               

                               

                }else{

                                cout<<"Error: Unable to open/read from file: "<< filename <<endl;

                                return 1;

                }

               

                cout<<"Printing all Questions from file\n\n";

                for(int i=0; i<index;i++){

                                cout<<"Q("<<i+1<<") "<<questionArray[i][0]<<endl;

                                cout<<"[A] "<<questionArray[i][1]<<endl;

                                cout<<"[B] "<<questionArray[i][2]<<endl;

                                cout<<"[C] "<<questionArray[i][3]<<endl;

                                cout<<"[D] "<<questionArray[i][4]<<endl<<endl;

                }

               

}

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Thanks , please do give a thumbs up !