Logical programs

use this code

output

int SIZE = 3;
int i, j, N;
int[,] board = new int[SIZE, SIZE];
for (int val1 = 0; val1 < SIZE; val1++)
{
for (int val2 = 0; val2 < SIZE; val2++)
{
board[val1, val2] = SIZE* SIZE;
}
}
int left, top;
left = 0;
top = SIZE - 1;
N = 1;
for (i = 1; i <= SIZE / 2; i++, left++, top--)
{
//Fill from left to right
for (j = left; j <= top; j++, N++)
{
board[left, j] = N;
}
//Fills from top to down
for (j = left + 1; j <= top; j++, N++)
{
board[j, top] = N;
}
//Fills from right to left
for (j = top - 1; j >= left; j--, N++)
{
board[top, j] = N;
}
//Fills from down to top
for (j = top - 1; j >= left + 1; j--, N++)
{
board[j, left] = N;
}
}
//Your code goes here
for (int v1 = 0; v1 < board.GetLength(0); v1++)
{
for (int v2 = 0; v2 < board.GetLength(1); v2++)
{
Console.Write(board[v1,v2] + "\t");
}
Console.WriteLine();
}

5 Replies

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ali tuncer9y ago
Accepted answer
it looks like a spiral matrix,check these links :
http://www.c-sharpcorner.com/uploadfile/6d982e/create-a-spiral-matrix-by-taking-number-of-rows-and-columns/
http://www.geeksforgeeks.org/print-a-given-matrix-in-spiral-form/
Ananth G9y ago
use this code
output
int SIZE = 3;
          int i, j, N;
          int[,] board = new int[SIZE, SIZE];
          for (int val1 = 0; val1 < SIZE; val1++)
          {
              for (int val2 = 0; val2 < SIZE; val2++)
              {
                  board[val1, val2] = SIZE* SIZE;
              }
          }
          int left, top;

          left = 0;
          top = SIZE - 1;
          N = 1;

          for (i = 1; i <= SIZE / 2; i++, left++, top--)
          {
              //Fill from left to right
              for (j = left; j <= top; j++, N++)
              {
                  board[left, j] = N;
              }

              //Fills from top to down
              for (j = left + 1; j <= top; j++, N++)
              {
                  board[j, top] = N;
              }

              //Fills from right to left
              for (j = top - 1; j >= left; j--, N++)
              {
                  board[top, j] = N;
              }

              //Fills from down to top
              for (j = top - 1; j >= left + 1; j--, N++)
              {
                  board[j, left] = N;
              }
          }


          //Your code goes here
         for (int v1 = 0; v1 < board.GetLength(0); v1++)
      {
          for (int v2 = 0; v2 < board.GetLength(1); v2++)
          {
              Console.Write(board[v1,v2] + "\t");
          }
          Console.WriteLine();
      }
Prakash Kumar9y ago
Hi Suresh,
The logic behind the code was,
1 2 3
8 9 4
7 6 5
Suresh Molabanti9y ago
today i attended one interview.they asking like this.i dont know how to write.could please give me logic code with out using predefined functions
Manas Mohapatra9y ago
What is the logic behind of the output. Please describe...