Day 4 of the GFG 21 Days Challenge!๐ฉ๐ปโ๐ป
The question today was: *Binary Tree to DLL*
Approach: Perform in-order to insert all the node values into a stack. Then, pop element from the stack and insert it in DLL.
@geeksforgeek@DeutscheBank#geekstreak2024#deutschebank