# Remove first X rows and columns from a matrix

Given an integer X and a square matrix mat[][], the task is to remove the first X rows and columns from the given matrix and print the updated matrix.

Examples:

Input: mat[][] = {
{1, 2, 3, 4},
{5, 6, 7, 8},
{8, 9, 4, 2},
{4, 8, 9, 2} },
X = 2
Output:
4 2
9 2

Input: mat[][] = {
{1, 2, 3},
{4, 5, 6},
{7, 8, 9} },
X = 1
Output:
5 6
8 9

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

Approach: Print the elements of the matrix arr[i][j] for all i, j ∈ [X, N – 1] where N is the order of the given square matrix.

Below is the implementation of the above approach:

## C++

 `// C++ implementation of the approach ` `#include ` `using` `namespace` `std; ` ` `  `const` `int` `MAX = 50; ` ` `  `// Function to print the matrix after ` `// ignoring first x rows and columns ` `void` `remove_row_col(``int` `arr[][MAX], ``int` `n, ``int` `x) ` `{ ` ` `  `    ``// Ignore first x rows and columns ` `    ``for` `(``int` `i = x; i < n; i++) { ` `        ``for` `(``int` `j = x; j < n; j++) { ` `            ``cout << arr[i][j] << ``" "``; ` `        ``} ` `        ``cout << endl; ` `    ``} ` `} ` ` `  `// Driver Code ` `int` `main() ` `{ ` ` `  `    ``// Order of the square matrix ` `    ``int` `n = 3; ` `    ``int` `arr[][MAX] = { { 1, 2, 3 }, ` `                       ``{ 4, 5, 6 }, ` `                       ``{ 7, 8, 9 } }; ` ` `  `    ``int` `x = 1; ` `    ``remove_row_col(arr, n, x); ` `} `

## Java

 `// Java implementation of the approach ` ` `  `import` `java.io.*; ` ` `  `class` `GFG  ` `{ ` ` `  `static` `int` `MAX = ``50``; ` ` `  `// Function to print the matrix after ` `// ignoring first x rows and columns ` `static` `void` `remove_row_col(``int` `arr[][], ``int` `n, ``int` `x) ` `{ ` ` `  `    ``// Ignore first x rows and columns ` `    ``for` `(``int` `i = x; i < n; i++)  ` `    ``{ ` `        ``for` `(``int` `j = x; j < n; j++) ` `        ``{ ` `            ``System.out.print( arr[i][j] + ``" "``); ` `        ``} ` `        ``System.out.println(); ` `    ``} ` `} ` ` `  `// Driver Code ` `public` `static` `void` `main (String[] args)  ` `{ ` `    ``// Order of the square matrix ` `    ``int` `n = ``3``; ` `    ``int` `arr[][] = { { ``1``, ``2``, ``3` `}, ` `                    ``{ ``4``, ``5``, ``6` `}, ` `                    ``{ ``7``, ``8``, ``9` `} }; ` ` `  `    ``int` `x = ``1``; ` `    ``remove_row_col(arr, n, x); ` `} ` `} ` ` `  `// This code is contributed by  ` `// shk `

## Python3

 `# Python3 implementation of the approach  ` ` `  `# Function to print the matrix after  ` `# ignoring first x rows and columns  ` `def` `remove_row_col(arr, n, x):  ` ` `  `    ``# Ignore first x rows and columns  ` `    ``for` `i ``in` `range``(x, n):  ` `        ``for` `j ``in` `range``(x, n):  ` `            ``print``(arr[i][j], end ``=` `" "``)  ` `         `  `        ``print``() ` ` `  `# Driver Code  ` `if` `__name__ ``=``=` `"__main__"``: ` ` `  `    ``# Order of the square matrix  ` `    ``n ``=` `3` `    ``MAX` `=` `50` `    ``arr ``=` `[[``1``, ``2``, ``3``],  ` `           ``[``4``, ``5``, ``6``],  ` `           ``[``7``, ``8``, ``9``]]  ` ` `  `    ``x ``=` `1` `    ``remove_row_col(arr, n, x)  ` `     `  `# This code is contributed by Rituraj Jain `

## C#

 `// C# implementation of the approach  ` `using` `System; ` ` `  `class` `GFG  ` `{  ` `    ``// Function to print the matrix after  ` `    ``// ignoring first x rows and columns  ` `    ``static` `void` `remove_row_col(``int` `[,]arr, ``int` `n, ``int` `x)  ` `    ``{  ` `     `  `        ``// Ignore first x rows and columns  ` `        ``for` `(``int` `i = x; i < n; i++)  ` `        ``{  ` `            ``for` `(``int` `j = x; j < n; j++)  ` `            ``{  ` `                ``Console.Write(arr[i, j] + ``" "``);  ` `            ``}  ` `            ``Console.WriteLine();  ` `        ``}  ` `    ``}  ` `     `  `    ``// Driver Code  ` `    ``public` `static` `void` `Main()  ` `    ``{  ` `        ``// Order of the square matrix  ` `        ``int` `n = 3;  ` `        ``int` `[,]arr = { { 1, 2, 3 },  ` `                        ``{ 4, 5, 6 },  ` `                        ``{ 7, 8, 9 } };  ` `     `  `        ``int` `x = 1;  ` `        ``remove_row_col(arr, n, x);  ` `    ``}  ` `}  ` ` `  `// This code is contributed by Ryuga `

## PHP

 ` `

Output:

```5 6
8 9
```

Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready.

My Personal Notes arrow_drop_up

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.

Article Tags :
Practice Tags :

Be the First to upvote.

Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.