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Problems with tag Stack

197 found, showing 150 to 180

6

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Online Stock Span ->

Medium, #901, 2 solutions

Palindrome Linked List ->

Easy, #234, 5 solutions

Parse Lisp Expression ->

Hard, #736, 2 solutions

Parsing A Boolean Expression ->

Hard, #1106, 2 solutions

Print Immutable Linked List in Reverse ->

Medium, #1265, 2 solutions

Pseudo-Palindromic Paths in a Binary Tree ->

Medium, #1457, 2 solutions

Remove All Adjacent Duplicates in String II ->

Medium, #1209, 2 solutions

Remove All Adjacent Duplicates In String ->

Easy, #1047, 2 solutions

Remove Duplicate Letters ->

Medium, #316, 3 solutions

Remove Outermost Parentheses ->

Easy, #1021, 2 solutions

Removing Stars From a String ->

Medium, #2390, 2 solutions

Reorder List ->

Medium, #143, 5 solutions

Reorder Routes to Make All Paths Lead to the City Zero ->

Medium, #1466, 2 solutions

Replace Non-Coprime Numbers in Array ->

Hard, #2197, 2 solutions

Reverse Substrings Between Each Pair of Parentheses ->

Medium, #1190, 2 solutions

Remove K Digits ->

Medium, #402, 3 solutions

Shortest Subarray to be Removed to Make Array Sorted ->

Medium, #1574, 2 solutions

Remove Nodes From Linked List ->

Medium, #2487, 2 solutions

Score of Parentheses ->

Medium, #856, 2 solutions

Robot Collisions ->

Hard, #2751, 2 solutions

Smallest Missing Genetic Value in Each Subtree ->

Hard, #2003, 2 solutions

Simplify Path ->

Medium, #71, 5 solutions

Smallest K-Length Subsequence With Occurrences of a Letter ->

Hard, #2030, 2 solutions

Step-By-Step Directions From a Binary Tree Node to Another ->

Medium, #2096, 2 solutions

Shortest Unsorted Continuous Subarray ->

Medium, #581, 3 solutions

Subarray With Elements Greater Than Varying Threshold ->

Hard, #2334, 2 solutions

Sum of Subarray Minimums ->

Medium, #907, 2 solutions

Smallest Subsequence of Distinct Characters ->

Medium, #1081, 2 solutions

Stamping The Sequence ->

Hard, #936, 2 solutions

Steps to Make Array Non-decreasing ->

Medium, #2289, 2 solutions