I want to print out some values from 2-d array C++

I want to input data from txt file. the file contains 2-d array [5][5] how can i print out the any value i want? i don't want to print out the whole 5*5 data

#include <iostream>

#include <fstream>
#include <string>


using namespace std;



int main()
{

    double distance[5][5] ;
    string line;

     ifstream ratefile;
                   ratefile.open("a.txt");
     ofstream file;
     if (ratefile.is_open())
      {
    while (! ratefile.eof() )
    {
      getline (ratefile,line);
   ratefile.getline(distance, 25, '*');

    cout << "\nDistance [0][0]" << ": " << distance[0][0];
    cout << "\nDistance [0][1]" << ": " << distance[0][1];
    cout << "\nDistance [0][2]" << ": " << distance[0][2];
    cout << "\nDistance [0][3]" << ": " << distance[0][3];
    cout << "\nDistance [1][0]" << ": " << distance[1][0];
    cout <<开发者_如何学JAVA "\nDistance [1][1]" << ": " << distance[1][1];
    cout << "\nDistance [1][2]" << ": " << distance[1][2];
    cout << "\nDistance [1][3]" << ": " << distance[1][3];

    cout << endl;


    cin.get();



    return 0;
}

If you only want to output one value and the user should be able to choose a value, you can do something like this:

int x, y;

cin >> x;
cin >> y;

cout << "\nDistance [" << x << "][" << y << "]" << ": " << distance[x][y];

But you should check if the user enter valid numbers (0 <= x < 4 and 0 <= y < 4)

There is part of the code missing, but you are printing values you want. Simply remove the lines you don't want to print.

Of course you can also use variables:

int x = 2,y = 2;
cout << endl << "Distance [" << x << "][" << y << "] : " << distance[x][y];