C++ Output 2D array?

hi,
I need an array with 400 values of x and y coordinate. (Values 1-400, just up counting)

Code:

---

  # include <iostream>
  using namespace std;

  int main () (

  int rows = 20;
  int columns = 20;
  int i;
  int j;
  int matrix [rows] [columns]; / / 2-D array of produce (x + y Coord)
          for (i = 1; i <rows; i + +) (/ / lines
                  court <<i << "" <<endl;
              for (j = 0, j <column; j + +) (/ / columns
                  matrix [i] [j] = i * columns + j;
                  court <<i * columns + j << "";
          )
          )
  cout << "\ n" << "Position:" <<matrix [1] [1] <<endl; / / output array value at position [row] [column]

---

the problem is first line actually connected to each end of the line?

hi,
Because your endl at the wrong place.

I think this is not the mistake.

I am completely out endl arises following chain:
1 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 2 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 3 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 4 80 81

The error is expected in the 1st Loop.

Try

Code:

---

for (i = 0; i <rows; i + +) (/ / lines
              for (j = 0, j <column; j + +) (/ / columns
                  matrix [i] [j] = i * columns + j +1;
                  court <<matrix [i] [j] << "";
          )
          cout <<endl; / / here is the end of line
  )

---

However, without the header row and column.

If you also want to have, the more loops

Code:

---

  int matrix [rows +1] [column +1], / / you need logically extra row / column  for the heads.

  / / Headers for rows and columns
  for (i = 0; i <rows; i + +) (
          matrix [i] [0] = i;

  )
  for (i = 0; i <columns; i + +) (
          matrix [0] [i] = i;

  )

  / / empty boxes and fill everything out.
  for (i = 0; i <rows; i + +) (
          for (j = 0, j <column; j + +) (

                  if (i! = 0 & & j! = 0) / / header should not be overwritten ...
                          matrix [i] [j] = (i-1) * columns + j / / puts the figures are 1.1 to begin with 1

                  cout <<matrix [i] [j] << "";
          )
          cout <<endl; / / here is the end of line
  )

---