Creating a space with an int variable in a 2d array

[Yaazie32]

Hey!

I'm a beginner and using c++, i was wondering how do you create a space with an int variable in an array.


int Array[9][9] = {{ ' ', 0, 1 , 2 , 3, 4 ,5,6,7},{0,1,1,1,2,3,4,5,6},
{1,1,1,2,3,4,5,6,7},{2,1,2,2,3,4,5,6,7},
{3,2,3,3,3,5,6,7,8},{4,3,4,4,5,5,6,7,8},
{5,4,5,5,6,6,7,8,9},{6,5,6,6,7,7,8,8,9},
{7,6,7,7,8,8,9,9,9}};
As you can see at Array[0][0] i want make a space there. It comes out as 32.
so i tried converting it like this static_cast<char>(32) but it still doesn't work. Any ideas or advice?

[Codermik]

A space is a ASCII character so naturally it would show as 32 in your array of int because that's the character code for space.

Just curious why you would want to do that?

[Duthomhas]

You can't. A space and an int are two different things.

I suggest you reconsider how your routines work. (Perhaps if you tell us what you are trying to do, we can help.)

[Yaazie32]

Well i have 5 2d arrays. A,B,C,D and E. The answer that i get for B and C would go into D. As in int D[B][C]. So if i make the array a char then i wouldn't get the correct values. so if i make the array an int. I can just convert the 1st value to a space

[Yaazie32]

char A[8][9] = {{' ','2','3','4','5','6','7','8','9'},{'2','2','2','3','4','5','6','7','8'},
{'3','2','2','3','4','5','6','7','8'},{'4','3','3','3','4','5','6','7','8'},
{'5','4','4','4','4','5','6','7','8'},{'6','5','5','5','5','6','7','8','9'},
{'7','6','6','6','7','7','8','8','9'},{'8','7','7','7','8','8','9','9','9'}};

char B[8][10] = {{' ','0','1','2','3','4','5','6','7','8'},{'0','1','1','1','2','3','4','5','6','6'},
{'1','1','1','2','2','3','4','6','7','7'},{'2','1','2','2','3','3','4','6','7','7'},
{'3','2','2','3','3','4','5','6','8','8'},{'4','3','3','4','4','5','6','7','8','8'},
{'5','4','5','5','6','7','8','9','9'},{'6','5','5','6','7','8','8','9','9','9'}};

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

char D[10][10] = {{' ','1','2','3','4','5','6','7','8','9'},{'1','1','2','3','4','5','6','7','8','9'},
{'2','2','2','3','4','5','6','7','8','9'},{'3','3','3','3','4','5','6','7','8','9'},
{'4','4','4','4','4','5','6','7','8','9'},{'5','5','5','5','5','5','6','7','8','9'},
{'6','6','6','6','6','6','6','7','8','9'},{'7','7','7','7','7','7','7','7','8','9'},
{'8','8','8','8','8','8','8','8','8','9'},{'9','9','9','9','9','9','9','9','9','9'}};

I have an answer to a problem which links up at B[2][3] and C[3][4]
so that answer should go into the array D[B[2][3]][C[3][4]] but it wouldn't because it's turning everything to ascii values and the answers are coming out haywire

[Yaazie32]

Thanks for the help guys:)

[Codermik]

The answer that i get for B and C would go into D. As in int D[B][C]

You cant statically allocate an array using a variable holding a size, you would need to know its size in advance using that method. To make arrays during runtime you would need to dynamically allocate the memory using the new operator.

I still don't follow why you need a space though.

[Codermik]

I still don't follow why you need a space though.

please elaborate why you need this space?

[Yaazie32]

It's part of an exercise unfortunately. Like asking the user questions and for each question the get a mark. Then when i'm done with section A's question. I put the marks i got for the questions in the array A and get the answer. But the table i was given has a space in it

[Yaazie32]

Are you saying that i should leave the space?

[Codermik]

No, I just didnt see the logic in having a space there.

Does the table you were given match the one posted above? - or have you modified it while experimenting?

[Yaazie32]

No it matches it exactly. I also don't see the logic because we don't need to display the tables lol

[Yaazie32]

But i thought maybe there could be a way. Thanks for trying though:)

[Codermik]

Can you post the full exercise details?

I could probably help you a lot more if you posted it as it was given to you, at the moment I don't completely follow the objective.

[Yaazie32]

Yes no problem. It's a pdf. Could you inbox me your email addy

[Codermik]

Wont let me, seems to be a bug on the forum because your current and previous names cant be found.

You could always use dropbox

[Codermik]

or send me a pm with your email and i will reply to it