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Pocket Gems
Pocket Gems
15 questions
Interview frequency breakdown: 30-day, 3-month, 6-month & all-time
1 Easy
10 Med
4 Hard
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15
questions
#28
Find the Index of the First Occurrence in a String
Easy
two pointers
WalkCCC
100% Freq
#75
Sort Colors
Medium
array
NeetCode
100% Freq
#133
Clone Graph
Medium
hash table
NeetCode
100% Freq
#139
Word Break
Medium
array
NeetCode
100% Freq
#214
Shortest Palindrome
Hard
string
WalkCCC
100% Freq
#215
Kth Largest Element in an Array
Medium
array
NeetCode
100% Freq
#269
Alien Dictionary
Hard
array
NeetCode
100% Freq
#285
Inorder Successor in BST
Medium
tree
WalkCCC
100% Freq
#347
Top K Frequent Elements
Medium
array
NeetCode
100% Freq
#380
Insert Delete GetRandom O(1)
Medium
array
WalkCCC
100% Freq
#424
Longest Repeating Character Replacement
Medium
hash table
NeetCode
100% Freq
#442
Find All Duplicates in an Array
Medium
array
NeetCode
100% Freq
#600
Non-negative Integers without Consecutive Ones
Hard
dynamic programming
WalkCCC
100% Freq
#692
Top K Frequent Words
Medium
array
WalkCCC
100% Freq
#772
Basic Calculator III
Hard
math
WalkCCC
100% Freq