Update 05-arrays.md

kapil5849 · web-flow · commit 4215ceb2d313 · 2021-11-06T15:40:24.000+05:30
diff --git a/assignments/05-arrays.md b/assignments/05-arrays.md
@@ -28,6 +28,7 @@
 23. [Lucky Number In a Matrix](https://leetcode.com/problems/lucky-numbers-in-a-matrix/)
 24. [Maximum Subarray](https://leetcode.com/problems/maximum-subarray/)
 25. [Reshape the Matrix](https://leetcode.com/problems/reshape-the-matrix/)
+26. [Plus One](https://leetcode.com/problems/plus-one/)
 
 ### Medium
 1. [Spiral Matrix](https://leetcode.com/problems/spiral-matrix/)
