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Companies
Oracle
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Stack
0/23 solved
Trapping Rain Water
HARD
Valid Parentheses
EASY
Palindrome Linked List
EASY
Min Stack
MEDIUM
Binary Tree Inorder Traversal
EASY
Daily Temperatures
MEDIUM
Decode String
MEDIUM
Longest Valid Parentheses
HARD
Maximal Rectangle
HARD
Remove K Digits
MEDIUM
Binary Search Tree Iterator
MEDIUM
Asteroid Collision
MEDIUM
Evaluate Reverse Polish Notation
MEDIUM
Implement Queue using Stacks
EASY
Backspace String Compare
EASY
Remove All Adjacent Duplicates In String
EASY
Basic Calculator
HARD
Valid Parenthesis String
MEDIUM
Construct Binary Search Tree from Preorder Traversal
MEDIUM
Implement Stack using Queues
EASY
Flatten Nested List Iterator
MEDIUM
Reverse Substrings Between Each Pair of Parentheses
MEDIUM
Closest Binary Search Tree Value II
HARD