[Solved] Why is my programming crashing [closed]

by 


    //loop through the 2d array
    for(int i = 0; i <= boardsize; i++)
    {
        getline(fin, line);
        for(int j = 0; j < boardsize; j++)
        {
            if(i != 0)
            board[i][j] = (int)line[j];
        }
        line.clear();
    }

needs to be

    //loop through the 2d array
    for(int i = 0; i < boardsize; i++)         // note < instead of <=
    {
        getline(fin, line);
        for(int j = 0; j < boardsize; j++)
        {                                      // not I deleted if statement
            board[i][j] = (int)line[j];
        }
        line.clear();
    }

This is because arrays in C++ start at the index 0, so when you allocate an array of size three, as you do above with board = new int*[boardsize];, the indices of this array will be 0, 1, 2, ... boardsize-1, whereas your algorithm was using 1, 2, 3, ... boardsize which will be an out of bounds access because you only have n blocks allocated and you are trying to access (modify, actually) block n + 1, which will result in a segmentation fault.

solved Why is my programming crashing [closed]