Question

Language : C ++

#include
#include
#include
#include
#include
using namespace std;

void DisplayMenu()
{
   cout << "1. E games\n";
   cout << "2. T games\n";
   cout << "3. M games\n";
   cout << "4. Total Games\n";
   cout << "5. Exit\n";

}
double total(double egames, double tgames, double mgames)
{
   int totalgames = egames + tgames + mgames;
   cout << "There are " << totalgames << " games\n";
   return totalgames;
}
double Egames(double egames, double tgames, double mgames)
{
   double Egames;
   Egames = egames/(egames+tgames+mgames);
   cout << "There are " << Egames << " E games\n";
   return Egames;

}
double Tgames(double egames, double tgames, double mgames)
{
   double Tgames;
   Tgames = tgames/(egames + tgames + mgames);
   cout << "There are " << Tgames << " T games\n";
   return Tgames;

}
double Mgames(double egames, double tgames, double mgames)
{
   double Mgames;
   Mgames = mgames/(egames + tgames + mgames);
   cout <<"There are " << Mgames << " M games\n";
   return Mgames;

}
int main()
{
   int choice;
   double egames;
   double tgames;
   double mgames;
   int totalgames;
   ofstream someFile("text_file.txt");
   someFile << "E games\t";
   someFile << "T games\t";
   someFile << "M games\n";
   cout << "Enter number of E games\n";
   cin >> egames;
   someFile << egames;
   someFile << "\t\t";
   cout << "Enter number of T games\n";
   cin >> tgames;
   someFile << tgames;
   someFile << "\t\t";
   cout << "Enter number of M games\n";
   cin >> mgames;
   someFile << mgames;
   someFile << "\t";
   DisplayMenu();
   cin >> choice;
   someFile.close();

   for (; choice >= 1 && choice <= 5;)
   {
       if (choice == 1)
           Egames(egames, tgames, mgames);
       cout << "\n";
       if (choice == 2)
           Tgames(egames, tgames, mgames);
       cout << "\n";
       if (choice == 3)
           Mgames(egames, tgames, mgames);
       cout << "\n";
       if (choice == 4)
           total(egames, tgames, mgames);
       cout << "\n";
       if (choice == 5)
           exit(0);
       DisplayMenu();
       cin >> choice;
   }

}

I need a way to add a 2d array and reading from the file any solutions?

The text file is just called text_file.txt

Answer 1

Answer:

Just add the header file: #include<bits/stdc++.h>

Just Place the below code inside your main functoin.

In the code, I just created 2d array to store the values that read from file called text_file.txt.

I skip the first line of File - so used check variable.

From the second line of the file, I take the line and split using stringstream with the help of space inbetween the values.

I store the splitted values in a vector.

Then from the vector and I store the values to the array that I have created.

The below code works perfectly and it has no error!!!

Code:

ifstream file;

file.open("text_file.txt");

string line;

int arr[1000][3]={0};

vector<int> temp;

int i=0;
int check=1;
`while(getline(file,line))
{
   temp.clear();
  
   if(check>=2)
   {
  
   stringstream s(line);
  
   while(getline(s,t,' '))
   {
       temp.push_back(stoi(t));
   }
  
   arr[i][0]=v[0];
   arr[i][1]=v[1];
   arr[i][2]=v[2];
  
   i++;
}
check++;
}