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Problems with tag Stack

197 found, showing 30 to 60

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Choose Edges to Maximize Score in a Tree ->

Medium, #2378, 2 solutions

Clear Digits ->

Easy, #3174, 2 solutions

Clone Binary Tree With Random Pointer ->

Medium, #1485, 2 solutions

Clone N-ary Tree ->

Medium, #1490, 2 solutions

Closest Binary Search Tree Value II ->

Hard, #272, 2 solutions

Clumsy Factorial ->

Medium, #1006, 2 solutions

Collecting Chocolates ->

Medium, #2735, 2 solutions

Construct Binary Search Tree from Preorder Traversal ->

Medium, #1008, 2 solutions

Construct Binary Tree from Preorder and Postorder Traversal ->

Medium, #889, 2 solutions

Construct Binary Tree from String ->

Medium, #536, 3 solutions

Construct Smallest Number From DI String ->

Medium, #2375, 2 solutions

Convert Binary Search Tree to Sorted Doubly Linked List ->

Medium, #426, 2 solutions

Convert Expression to Polish Notation ->

Hard, #369, 1 solutions

Convert Expression to Reverse Polish Notation ->

Hard, #370, 1 solutions

Convert JSON String to Object ->

Hard, #2759, 1 solutions

Count Collisions on a Road ->

Medium, #2211, 2 solutions

Count Good Nodes in Binary Tree ->

Medium, #1448, 2 solutions

Count Submatrices With All Ones ->

Medium, #1504, 2 solutions

Count Visited Nodes in a Directed Graph ->

Hard, #2876, 2 solutions

Crawler Log Folder ->

Easy, #1598, 2 solutions

Create Maximum Number ->

Hard, #321, 4 solutions

Daily Temperatures ->

Medium, #739, 2 solutions

Decode String ->

Medium, #394, 4 solutions

Design a Stack With Increment Operation ->

Medium, #1381, 2 solutions

Design a Text Editor ->

Hard, #2296, 2 solutions

Design an Expression Tree With Evaluate Function ->

Medium, #1628, 2 solutions

Design Browser History ->

Medium, #1472, 2 solutions

Design Most Recently Used Queue ->

Medium, #1756, 2 solutions

Design Video Sharing Platform ->

Hard, #2254, 2 solutions

Decoded String at Index ->

Medium, #880, 3 solutions