PrepFlow
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ATS Checker
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DSA Sheets
Compiler
PrepFlow
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Companies
X
Design
Design
0/9 solved
LRU Cache
MEDIUM
Implement Trie (Prefix Tree)
MEDIUM
Insert Delete GetRandom O(1)
MEDIUM
Flatten Nested List Iterator
MEDIUM
Design Twitter
MEDIUM
Flatten 2D Vector
MEDIUM
Design Skiplist
HARD
Design Authentication Manager
MEDIUM
Tweet Counts Per Frequency
MEDIUM