# Program to print binary right angle triangle

• Difficulty Level : Basic
• Last Updated : 26 Apr, 2021

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    ```

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## 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

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## Javascript

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Output :

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

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