# Print a matrix in a spiral form starting from a point

Given a matrix of size n*m, and a point P(c, r). Print the matrix in a spiral form(clockwise) starting from the point P.

Examples :

```Input : mat[][] = {{1 2 3},
{4 5 6},
{7 8 9}}
Point P = (0, 2)
Output : 3 6 5 2 9 8 7 4 1
The starting point is top left which
is 3.
```

## Recommended: Please try your approach on {IDE} first, before moving on to the solution.

This problem is mainly an extension of print a matrix in spiral form.

## C++

 `// C++ program to print a matrix in spiral ` `// form. ` `#include ` `using` `namespace` `std; ` ` `  `const` `int` `MAX = 100; ` ` `  `void` `printSpiral(``int` `mat[][MAX], ``int` `r, ``int` `c) ` `{ ` ` `  `    ``int` `i, a = 0, b = 2; ` ` `  `    ``int` `low_row = (0 > a) ? 0 : a; ` `    ``int` `low_column = (0 > b) ? 0 : b - 1; ` `    ``int` `high_row = ((a + 1) >= r) ? r - 1 : a + 1; ` `    ``int` `high_column = ((b + 1) >= c) ? c - 1 : b + 1; ` ` `  `    ``while` `((low_row > 0 - r && low_column > 0 - c)) { ` ` `  `        ``for` `(i = low_column + 1; i <= high_column &&  ` `                         ``i < c && low_row >= 0; ++i) ` `            ``cout << mat[low_row][i] << ``" "``; ` `        ``low_row -= 1; ` ` `  `        ``for` `(i = low_row + 2; i <= high_row && i < r &&  ` `                                   ``high_column < c; ++i) ` `            ``cout << mat[i][high_column] << ``" "``; ` `        ``high_column += 1; ` ` `  `        ``for` `(i = high_column - 2; i >= low_column && ` `                               ``i >= 0 && high_row < r; --i) ` `            ``cout << mat[high_row][i] << ``" "``; ` `        ``high_row += 1; ` ` `  `        ``for` `(i = high_row - 2; i > low_row && i >= 0  ` `                                   ``&& low_column >= 0; --i) ` `            ``cout << mat[i][low_column] << ``" "``; ` `        ``low_column -= 1; ` `    ``} ` `    ``cout << endl; ` `} ` ` `  `// Driver code ` `int` `main() ` `{ ` `    ``int` `mat[][MAX] = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } }; ` `    ``int` `r = 3, c = 3; ` ` `  `    ``printSpiral(mat, r, c); ` `} `

## Java

 `// Java program to print a ` `// matrix in spiral form ` `import` `java.io.*; ` ` `  `class` `GFG { ` `  `  `static` `void` `printSpiral(``int` `[][]mat, ``int` `r, ``int` `c) ` `{ ` `    ``int` `i, a = ``0``, b = ``2``; ` ` `  `    ``int` `low_row = (``0` `> a) ? ``0` `: a; ` `    ``int` `low_column = (``0` `> b) ? ``0` `: b - ``1``; ` `    ``int` `high_row = ((a + ``1``) >= r) ? r - ``1` `: a + ``1``; ` `    ``int` `high_column = ((b + ``1``) >= c) ? c - ``1` `: b + ``1``; ` ` `  `    ``while` `((low_row > ``0` `- r && low_column > ``0` `- c))  ` `    ``{ ` `        ``for` `(i = low_column + ``1``; i <= high_column &&  ` `                         ``i < c && low_row >= ``0``; ++i) ` `            ``System.out.print (mat[low_row][i] + ``" "``); ` `        ``low_row -= ``1``; ` ` `  `        ``for` `(i = low_row + ``2``; i <= high_row && i < r &&  ` `                                  ``high_column < c; ++i) ` `            ``System.out.print(mat[i][high_column] + ``" "``); ` `        ``high_column += ``1``; ` ` `  `        ``for` `(i = high_column - ``2``; i >= low_column && ` `                        ``i >= ``0` `&& high_row < r; --i) ` `            ``System.out.print(mat[high_row][i] + ``" "``); ` `        ``high_row += ``1``; ` ` `  `        ``for` `(i = high_row - ``2``; i > low_row && i >= ``0` `                            ``&& low_column >= ``0``; --i) ` `            ``System.out.print(mat[i][low_column] +``" "``); ` `        ``low_column -= ``1``; ` `    ``} ` `    ``System.out.println(); ` `} ` ` `  `// Driver code ` `    ``static` `public` `void` `main (String[] args) ` `    ``{ ` `        ``int` `[][]mat = {{``1``, ``2``, ``3``}, ` `                       ``{``4``, ``5``, ``6``},  ` `                       ``{``7``, ``8``, ``9``}}; ` `        ``int` `r = ``3``, c = ``3``; ` ` `  `        ``// Function calling ` `        ``printSpiral(mat, r, c); ` `    ``} ` `} ` ` `  `// This code is contributed by vt_m. `

## Python 3

 `# Python3 program to print a matrix  ` `# in spiral form. ` `MAX` `=` `100` ` `  `def` `printSpiral(mat, r, c): ` ` `  `    ``a ``=` `0` `    ``b ``=` `2` ` `  `    ``low_row ``=` `0` `if` `(``0` `> a) ``else` `a ` `    ``low_column ``=` `0` `if` `(``0` `> b) ``else` `b ``-` `1` `    ``high_row ``=` `r``-``1` `if` `((a ``+` `1``) >``=` `r) ``else` `a ``+` `1` `    ``high_column ``=` `c``-``1` `if` `((b ``+` `1``) >``=` `c) ``else` `b ``+` `1` ` `  `    ``while` `((low_row > ``0` `-` `r ``and` `low_column > ``0` `-` `c)): ` ` `  `        ``i ``=` `low_column ``+` `1` `        ``while` `(i <``=` `high_column ``and`  `               ``i < c ``and` `low_row >``=` `0``): ` `            ``print``( mat[low_row][i], end ``=` `" "``) ` `            ``i ``+``=` `1` `        ``low_row ``-``=` `1` ` `  `        ``i ``=` `low_row ``+` `2` `        ``while` `(i <``=` `high_row ``and` `               ``i < r ``and` `high_column < c): ` `            ``print``(mat[i][high_column], end ``=` `" "``) ` `            ``i ``+``=` `1` `        ``high_column ``+``=` `1` ` `  `        ``i ``=` `high_column ``-` `2` `        ``while` `(i >``=` `low_column ``and`  `               ``i >``=` `0` `and` `high_row < r): ` `            ``print``(mat[high_row][i], end ``=` `" "``) ` `            ``i ``-``=` `1` `        ``high_row ``+``=` `1` ` `  `        ``i ``=` `high_row ``-` `2` `        ``while` `(i > low_row ``and`  `               ``i >``=` `0` `and` `low_column >``=` `0``): ` `            ``print``(mat[i][low_column], end ``=` `" "``) ` `            ``i ``-``=` `1` `        ``low_column ``-``=` `1` `     `  `    ``print``() ` ` `  `# Driver code ` `if` `__name__ ``=``=` `"__main__"``: ` `     `  `    ``mat ``=` `[[ ``1``, ``2``, ``3` `],  ` `           ``[ ``4``, ``5``, ``6` `],  ` `           ``[ ``7``, ``8``, ``9` `]] ` `    ``r ``=` `3` `    ``c ``=` `3` `    ``printSpiral(mat, r, c) ` ` `  `# This code is contributed by ita_c `

## C#

 `// C# program to print a  ` `// matrix in spiral form ` `using` `System; ` ` `  `class` `GFG { ` ` `  `static` `void` `printSpiral(``int` `[,]mat, ``int` `r, ``int` `c) ` `{ ` `    ``int` `i, a = 0, b = 2; ` ` `  `    ``int` `low_row = (0 > a) ? 0 : a; ` `    ``int` `low_column = (0 > b) ? 0 : b - 1; ` `    ``int` `high_row = ((a + 1) >= r) ? r - 1 : a + 1; ` `    ``int` `high_column = ((b + 1) >= c) ? c - 1 : b + 1; ` ` `  `    ``while` `((low_row > 0 - r && low_column > 0 - c)) ` `    ``{ ` `        ``for` `(i = low_column + 1; i <= high_column &&  ` `                         ``i < c && low_row >= 0; ++i) ` `            ``Console.Write (mat[low_row,i] + ``" "``); ` `        ``low_row -= 1; ` ` `  `        ``for` `(i = low_row + 2; i <= high_row && i < r &&  ` `                                  ``high_column < c; ++i) ` `            ``Console.Write(mat[i,high_column] + ``" "``); ` `        ``high_column += 1; ` ` `  `        ``for` `(i = high_column - 2; i >= low_column && ` `                        ``i >= 0 && high_row < r; --i) ` `            ``Console.Write(mat[high_row,i] + ``" "``); ` `        ``high_row += 1; ` ` `  `        ``for` `(i = high_row - 2; i > low_row && i >= 0  ` `                            ``&& low_column >= 0; --i) ` `            ``Console.Write(mat[i,low_column] +``" "``); ` `        ``low_column -= 1; ` `    ``} ` `    ``Console.WriteLine(); ` `} ` ` `  `    ``// Driver code ` `    ``static` `public` `void` `Main () ` `    ``{ ` `        ``int` `[,]mat = {{1, 2, 3}, ` `                      ``{4, 5, 6},  ` `                      ``{7, 8, 9}}; ` `        ``int` `r = 3, c = 3; ` ` `  `        ``// Function calling ` `        ``printSpiral(mat, r, c); ` `    ``} ` `} ` ` `  `// This code is contributed by vt_m. `

## PHP

 ` ``\$a``) ?  ` `                ``0 : ``\$a``; ` `    ``\$low_column` `= (0 > ``\$b``) ?  ` `                   ``0 : ``\$b` `- 1; ` `    ``\$high_row` `= ((``\$a` `+ 1) >= ``\$r``) ?  ` `                  ``\$r` `- 1 : ``\$a` `+ 1; ` `    ``\$high_column` `= ((``\$b` `+ 1) >= ``\$c``) ?  ` `                     ``\$c` `- 1 : ``\$b` `+ 1; ` ` `  `    ``while` `((``\$low_row` `> 0 - ``\$r` `&&  ` `            ``\$low_column` `> 0 - ``\$c``)) ` `    ``{ ` ` `  `        ``for` `(``\$i` `= ``\$low_column` `+ 1;  ` `             ``\$i` `<= ``\$high_column` `&&  ` `             ``\$i` `< ``\$c` `&& ``\$low_row` `>= 0; ++``\$i``) ` `            ``echo` `\$mat``[``\$low_row``][``\$i``], ``" "``; ` `        ``\$low_row` `-= 1; ` ` `  `        ``for` `(``\$i` `= ``\$low_row` `+ 2;  ` `             ``\$i` `<= ``\$high_row` `&& ``\$i` `< ``\$r` `&&  ` `             ``\$high_column` `< ``\$c``; ++``\$i``) ` `        ``echo` `\$mat``[``\$i``][``\$high_column``] , ``" "``; ` `        ``\$high_column` `+= 1; ` ` `  `        ``for` `(``\$i` `= ``\$high_column` `- 2;  ` `             ``\$i` `>= ``\$low_column` `&& ` `             ``\$i` `>= 0 && ``\$high_row` `< ``\$r``; --``\$i``) ` `            ``echo` `\$mat``[``\$high_row``][``\$i``] , ``" "``; ` `        ``\$high_row` `+= 1; ` ` `  `        ``for` `(``\$i` `= ``\$high_row` `- 2;  ` `             ``\$i` `> ``\$low_row` `&& ``\$i` `>= 0 &&  ` `             ``\$low_column` `>= 0; --``\$i``) ` `            ``echo` `\$mat``[``\$i``][``\$low_column``] , ``" "``; ` `        ``\$low_column` `-= 1; ` `    ``} ` `    ``echo` `"\n"``; ` `} ` ` `  `// Driver code ` `\$mat` `= ``array``(``array``(1, 2, 3), ` `             ``array``(4, 5, 6), ` `             ``array``(7, 8, 9)); ` `\$r` `= 3; ``\$c` `= 3; ` ` `  `printSpiral(``\$mat``, ``\$r``, ``\$c``); ` ` `  `// This code is contributed by aj_36 ` `?> `

Output:

```3 6 5 2 9 8 7 4 1
```

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Improved By : vt_m, jit_t, chitranayal

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