CODEWITHSUNDEEP
c++arrayssearch
Sparky
Sparky

Reputation: 11

Searching a two dimensional array c++

Total newbie here, having problems searching a 2 dimensional array. I have a 3x3 char array that holds '1' thru '9' like a tic tac toe board. For testing, I hard coded it to search for a '5', hoping it would return '1' for the row. It returns '3' no matter what. There are other posts similar, but they are all too advanced for what minuscule amount I know about c++. Here is my array:

char board[3][3] =
{
    { '1', '2', '3', }, // row 0
    { '4', '5', '6', }, // row 1
    { '7', '8', '9' } // row 2
};

And here's my function:

int searchBoard()
{
    char board[3][3];
    for (int r = 0; r < 3; r++)
    {
        for (int c = 0; c < 3; c++)
        {
            if (board[r][c] == '5')
            {
                return r;
            }
        }
    }
}

I would really appreciate some help!

Upvotes: 1

Views: 8952

Answers (2)

Quinn McHugh
Quinn McHugh

Reputation: 1707

Try changing your function searchBoard to

int searchBoard()
{
    char board[3][3] =
    {
        { '1', '2', '3', }, // row 0
        { '4', '5', '6', }, // row 1
        { '7', '8', '9' } // row 2
    };
    for (int r = 0; r < 3; r++)
    {
        for (int c = 0; c < 3; c++)
        {
            if (board[r][c] == '5')
            {
                return r;
            }
        }
    }
}

Upvotes: 1

timrau
timrau

Reputation: 23058

You should not declare a local, uninitialized board in searchBoard() which masked the global board.

Upvotes: 1

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