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Program to print binary right angle triangle
• Difficulty Level : Basic
• Last Updated : 14 Aug, 2018

Binary right angle triangle consists of only 0’s and 1’s in alternate positions.

Examples :

```Input : 4
Output :
0
1    0
0    1    0
1    0    1    0

Input : 3
Output :
0
1    0
0    1    0
```

## C++

 `// C program to print binary right angle``// triangle.``#include `` ` `// function to print binary right angle``// triangle``void` `binaryRightAngleTriangle(``int` `n) {``  ` `    ``// declare row and column``    ``int` `row, col; ``     ` `    ``for` `(row = 0; row < n; row++) ``    ``{``        ``for` `(col = 0;col <= row; col++) ``        ``{``            ``if` `(((row + col) % 2) == 0) ``                ``printf``(``"0"``);``            ``else``                ``printf``(``"1"``);``            ``printf``(``"\t"``);``        ``}``        ``printf``(``"\n"``);``    ``}   ``}`` ` `// driver code``int` `main(``void``) ``{   ``    ``// no. of rows to be printed``    ``int` `n = 4;``    ``binaryRightAngleTriangle(n);``    ``return` `0;``}`

## Java

 `// Java program to print binary ``// right angle triangle``class` `GFG``{``     ` `    ``// function to print binary right ``    ``// angle triangle``    ``static` `void` `binaryRightAngleTriangle(``int` `n)``    ``{``     ` `        ``// declare row and column``        ``int` `row, col; ``         ` `        ``for` `(row = ``0``; row < n; row++) ``        ``{``            ``for` `(col = ``0``; col <= row; col++) ``            ``{``                ``if` `(((row + col) % ``2``) == ``0``) ``                    ``System.out.print(``"0"``);``                ``else``                    ``System.out.print(``"1"``);``                     ` `                ``System.out.print(``"\t"``);``            ``}``             ` `            ``System.out.print(``"\n"``);``        ``} ``    ``}``     ` `    ``// Driver code``    ``public` `static` `void` `main (String[] args)``    ``{``        ``// no. of rows to be printed``        ``int` `n = ``4``;``         ` `        ``binaryRightAngleTriangle(n);``    ``}``}`` ` `// This code is contributed ``// by Anant Agarwal.`

## Python3

 `# Python 3 program to print ``# binary right angle triangle.`` ` `# function to print binary ``# right angle triangle``def` `binaryRightAngleTriangle(n):`` ` `    ``# declare row and column``    ``for` `row ``in` `range``(``0``, n): ``     ` `        ``for` `col ``in` `range``(``0``, row ``+` `1``): ``         ` `            ``if` `(((row ``+` `col) ``%` `2``) ``=``=` `0``) :``                ``print``(``"0"``, end ``=` `"")``            ``else``:``                ``print``(``"1"``, end ``=` `"")``            ``print``(``"\t"``, end ``=` `"")``         ` `        ``print``("")``     ` `# Driver Code``# no. of rows to be printed``n ``=` `4``binaryRightAngleTriangle(n)`` ` `# This code is contributed``# by Smitha`

## C#

 `// C# program to print binary ``// right angle triangle``using System;``class GFG``{``     ` `    ``// function to print binary right ``    ``// angle triangle``    ``static void binaryRightAngleTriangle(int n)``    ``{``     ` `        ``// declare row and column``        ``int row, col; ``         ` `        ``for (row = 0; row < n; row++) ``        ``{``            ``for (col = 0; col <= row; col++) ``            ``{``                ``if (((row + col) % 2) == 0) ``                    ``Console.Write("0");``                ``else``                    ``Console.Write("1");``                     ` `                    ``Console.Write("\t");``            ``}``             ` `                  ``Console.WriteLine();``        ``} ``    ``}``     ` `    ``// Driver code``    ``public static void Main ()``    ``{``        ``// no. of rows to be printed``        ``int n = 4;``         ` `        ``binaryRightAngleTriangle(n);``    ``}``}`` ` `// This code is contributed ``// by vt_m .`

## PHP

 ``

Output :

```0
1    0
0    1    0
1    0    1    0
```

This article is contributed by Bishal Kumar Dubey. 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.

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