Ask pavan
Revise
Using queue
Uses BFS
Awesome solution
solution using preorder traversal
Practice one more time
See algorithm
Trivial
Revise if you have time
Recursion.
Interesting solution... uses factorial
Unlikely to come.. complicated algo.... ask pavan
Revise solution
Interesting and easy
Simple
ask pavan
Imp revise
Interesting solution
geeksforgeeks
Tree
Ask pavan
Revise
Using queue
Uses BFS
Awesome solution
solution using preorder traversal
Arrays
Practice one more time
Heap
BST
See algorithm
Trivial
String
Revise if you have time
Recursion.
Interesting solution... uses factorial
Unlikely to come.. complicated algo.... ask pavan
Revise solution
Stacks
Interesting and easy
Simple
ask pavan
Imp revise
Interesting solution