I have a problem with the error "cannot convert from 'int' to char[][] ". I check it for many times but I do not know how to fix. I just start with C. Could you help me, please?
The error in the lines 23, 25, 28, 32, 64. I would like to design a Connect 4 game with 7 columns and 6 rows. Thanks!!

# include <stdio.h>
# define MAX 10
void welcome();
void initGrid(char[6][7]);
void drawGrid(char[6][7]);
int promptPlayer(int);
int checkSetValue(char[6][7], int);
int setGrid(char [6][7], int, int);
int checkThreeInRow(char[6][7], int, int);
int checkFull(char[6][7]);
void win(int);
void draw();


int main(int argc, char *argv[])
{
int gameOver = 0;
int currentPlayer = 1;
int gridWidth=7;
int gridHeight=6;
//int MAX1=6;
//int MAX=100;
char connect4grid[MAX][MAX]=connect4grid[gridHeight][gridWidth];
welcome();
initGrid(connect4grid);
while(gameOver !=1)
    {
    drawGrid(connect4grid);
    int enteredValue;
    int heightValue;
    enteredValue = promptPlayer(currentPlayer);
    if(checkSetValue(connect4grid,enteredValue)==0)
    {
    printf("that space is already taken! try again, please! \n");
    continue;
    }
    else
    {
    heightValue=setGrid(connect4grid, currentPlayer, enteredValue);
    }
    if(checkThreeInRow(connect4grid, enteredValue, heightValue) !=0)
    {
        gameOver =1;
        drawGrid(connect4grid);
        win(currentPlayer);

    }
    else if(checkFull(connect4grid)==1)
        {
        gameOver=1;
        drawGrid(connect4grid);
        draw();
        }
    if(currentPlayer ==1)
           currentPlayer =2;
    else
        currentPlayer =1;
      }
      printf("\n Goodbye!\n");

      return 0;


}

void welcome()
{
printf("\n\n Welcome to Connect 4 \n");
}
void initGrid(char connectgridarray[6][7])
{
    for(int i=0; i<=6; i++)
    {
        for( int j = 0; j <= 7;j++)
        {
        connectgridarray[j][i]= ' ';
        }
    }
}
void drawGrid(char connectgridarray[6][7])
{
    printf("\n\t");
    int i=0;
    for(i=1;i<=8;i++)
    {
        printf("| %d |", i);
    }
    printf("\n\t");
    for(i=0;i<=6;i++)
    {
        for(int j=0;j<=7;j++)
        {
        printf(" | %c |", connectgridarray[j][i]);
        }
        printf("\n\t");
    }
    printf("\n");
}
int promptPlayer(int player)
{
    int scannedNumber = 0;
    int wrong = 0;
    while( scannedNumber < 1|| scannedNumber > 8)
    {
    if(0 == wrong)
        printf("Player %i, enter a grid number still available [1-7]: ", player);
    else
        printf("Invalid number, player %i, enter a grid number [1-7]", player);
    scanf("%d", &scannedNumber);
    wrong =1;
    }
    return scannedNumber;
}
int checkSetValue(char connectgridarray[6][7], int column)
{
    column -= 1;
    if(connectgridarray[column][0] ==' ')
        return 1;
    return 0;
}
int setGrid(char connectgridarray[6][7], int currentPlayer, int column)
{
    column -= 1;
    for(int i =5; i>=0; i--)
        if(connectgridarray[column][i]== ' ')
        {
            if(currentPlayer ==1)
            {   connectgridarray[column][i] = 'X';
            }
            else
            {
                connectgridarray[column][i] = 'O';
            }
        return i;
        }

    return 0;
}
int checkThreeInRow(char connectgridarray[6][7], int column, int height)
{
    column -= 1;
    char characterToCheck = connectgridarray[column][height];
    int connect4 = 1;
    connect4 =1;
    int i=0;
    for(i=1; i<=3 && height+i<=6; i++)
    {
        if(connectgridarray[column][height+i]==characterToCheck)
            connect4++;
    }
    if(3==connect4)
        return 1;
    //check right and left
    connect4 =1;
    for(i=1; i<=3 && column+i <=7; i++)
    {
        if(connectgridarray[column+i][height] == characterToCheck)
        connect4++;
    }
    for(i=1; i<=3 && column-i >=0; i++)
    {   if(connectgridarray[column-i][height] == characterToCheck)
            connect4++;
    }
    if(3 == connect4)
        return 1;
    //check up/left diagonal and down/right diagonal
    connect4 =1;
    for(i =1; i<=3 && height+i <=5 && column+i >=0; i++)
    {
        if(connectgridarray[column-i][height-i]==characterToCheck)
        connect4++;
    }
    if(connect4==4)
        return 1;
    //check up/right diagonal and down/left diagonal
    connect4 =1;
    for(i=1; i<=2 && height-i>=0 && column+i <=6; i++)
    {
        if(connectgridarray[column+i][height-i]==characterToCheck)
            connect4++;
    }
    for(i=1;i<=2 && height+i<=6 && column-i>=0;i++)
    {
        if(connectgridarray[column-i][height+i]== characterToCheck)
            connect4++;
    }
    if(connect4==3)
        return 1;
    return 0;

}
int checkFull(char connectgridarray[6][7])
{
int full =0;
int counter = 0;
for(int i=0; i<=6; i++)
{
    for(int j =0; j<=7; j++)
    {
        if(connectgridarray[j][i] != ' ')
        {
            counter++;
        }
    }
}
if(7*8 == counter)
    full =1;
return full;
}
void win(int player)
{
    printf("\n\tCongratulations Player %i, you WIN !\n", player);
}
void draw()
{
    printf("\n\tA stalemate.....you have DRAWN!\n");
}

I fixed it, but there is no anything shown as the result. Could you help me, please!!!
Thank you so much!!!

# include <stdio.h>
//# define MAX1 6
//# define MAX2 7
#define gridHeight 6
#define gridWidth 7
void welcome();
void initGrid(char[6][7]);
void drawGrid(char[6][7]);
int promptPlayer(int);
int checkSetValue(char[6][7], int);
int setGrid(char [6][7], int, int);
int checkThreeInRow(char[6][7], int, int);
int checkFull(char[6][7]);
void win(int);
void draw();


int main(int argc, char *argv[])
{
int gameOver = 0;
int currentPlayer = 1;
//int gridWidth=7;
//int gridHeight=6;
//int MAX1=6;
//int MAX=100;
char connect4grid[gridHeight][gridWidth];
welcome();
initGrid(connect4grid);
while(gameOver !=1)
    {
    drawGrid(connect4grid);
    int enteredValue;
    int heightValue;
    enteredValue = promptPlayer(currentPlayer);
    if(checkSetValue(connect4grid,enteredValue)==0)
    {
    printf("that space is already taken! try again, please! \n");
    continue;
    }
    else
    {
    heightValue=setGrid(connect4grid, currentPlayer, enteredValue);
    }
    if(checkThreeInRow(connect4grid, enteredValue, heightValue) !=0)
    {
        gameOver =1;
        drawGrid(connect4grid);
        win(currentPlayer);

    }
    else if(checkFull(connect4grid)==1)
        {
        gameOver=1;
        drawGrid(connect4grid);
        draw();
        }
    if(currentPlayer ==1)
           currentPlayer =2;
    else
        currentPlayer =1;
      }
      printf("\n Goodbye!\n");

      return 0;


}

void welcome()
{
printf("\n\n Welcome to Connect 4 \n");
}
void initGrid(char connectgridarray[6][7])
{
    for(int i=0; i<=6; i++)
    {
        for( int j = 0; j <= 7;j++)
        {
        connectgridarray[j][i]= ' ';
        }
    }
}
void drawGrid(char connectgridarray[6][7])
{
    printf("\n\t");
    int i=0;
    for(i=1;i<=8;i++)
    {
        printf("| %d |", i);
    }
    printf("\n\t");
    for(i=0;i<=6;i++)
    {
        for(int j=0;j<=7;j++)
        {
        printf(" | %c |", connectgridarray[j][i]);
        }
        printf("\n\t");
    }
    printf("\n");
}
int promptPlayer(int player)
{
    int scannedNumber = 0;
    int wrong = 0;
    while( scannedNumber < 1|| scannedNumber > 8)
    {
    if(0 == wrong)
        printf("Player %i, enter a grid number still available [1-7]: ", player);
    else
        printf("Invalid number, player %i, enter a grid number [1-7]", player);
    scanf("%d", &scannedNumber);
    wrong =1;
    }
    return scannedNumber;
}
int checkSetValue(char connectgridarray[6][7], int column)
{
    column -= 1;
    if(connectgridarray[column][0] ==' ')
        return 1;
    return 0;
}
int setGrid(char connectgridarray[6][7], int currentPlayer, int column)
{
    column -= 1;
    for(int i =5; i>=0; i--)
        if(connectgridarray[column][i]== ' ')
        {
            if(currentPlayer ==1)
            {   connectgridarray[column][i] = 'X';
            }
            else
            {
                connectgridarray[column][i] = 'O';
            }
        return i;
        }

    return 0;
}
int checkThreeInRow(char connectgridarray[6][7], int column, int height)
{
    column -= 1;
    char characterToCheck = connectgridarray[column][height];
    int connect4 = 1;
    connect4 =1;
    int i=0;
    for(i=1; i<=3 && height+i<=6; i++)
    {
        if(connectgridarray[column][height+i]==characterToCheck)
            connect4++;
    }
    if(3==connect4)
        return 1;
    //check right and left
    connect4 =1;
    for(i=1; i<=3 && column+i <=7; i++)
    {
        if(connectgridarray[column+i][height] == characterToCheck)
        connect4++;
    }
    for(i=1; i<=3 && column-i >=0; i++)
    {   if(connectgridarray[column-i][height] == characterToCheck)
            connect4++;
    }
    if(3 == connect4)
        return 1;
    //check up/left diagonal and down/right diagonal
    connect4 =1;
    for(i =1; i<=3 && height+i <=5 && column+i >=0; i++)
    {
        if(connectgridarray[column-i][height-i]==characterToCheck)
        connect4++;
    }
    if(connect4==4)
        return 1;
    //check up/right diagonal and down/left diagonal
    connect4 =1;
    for(i=1; i<=2 && height-i>=0 && column+i <=6; i++)
    {
        if(connectgridarray[column+i][height-i]==characterToCheck)
            connect4++;
    }
    for(i=1;i<=2 && height+i<=6 && column-i>=0;i++)
    {
        if(connectgridarray[column-i][height+i]== characterToCheck)
            connect4++;
    }
    if(connect4==3)
        return 1;
    return 0;

}
int checkFull(char connectgridarray[6][7])
{
int full =0;
int counter = 0;
for(int i=0; i<=6; i++)
{
    for(int j =0; j<=7; j++)
    {
        if(connectgridarray[j][i] != ' ')
        {
            counter++;
        }
    }
}
if(7*8 == counter)
    full =1;
return full;
}
void win(int player)
{
    printf("\n\tCongratulations Player %i, you WIN !\n", player);
}
void draw()
{
    printf("\n\tA stalemate.....you have DRAWN!\n");
}

How about the Connect 4 game (1 player and computer)

? My code above is Connect 4 game between 2 players. I don't know about how to code for computer that can take automatically!
Could you give me the advices, please? I don't know how to code.

Thank you so much!!

I didn't bother replying as I see you're using turboc, something I don't have or wish to install.

But in reply to your latest question you could create a really stupid AI by using rand(). Or you could check on google for simple connect4 ai. But this might be stepping over the mark given your current skill level.

not really sure here but at the photo you got something looking like this:

char Connect4Grid[MAX][MAX] = blah_blah[value1][value2]

most likely you are defining a new array and pass an integer as a value to it! which will never work.

On the other hand I'd never read 200+ lines of code just to solve a bug. in the future please post snippets after you find where your problem is coming from

Cheers

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