Program to print binary right angle triangle

• Difficulty Level : Basic
• Last Updated : 16 Feb, 2023

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``import` `java.io.*;``public` `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
```

Time complexity: O(n*n)

Auxiliary space: O(1)

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