Problem intelligence
Insert Delete GetRandom O(1) - Duplicates allowed
HARD · 12 companies · Array · Design · Hash Table · Math · Randomized
Interview priority
60
medium
Target overlap
0/0
Recency
55
Trend
50
Frequency
100
Company observations
Affirmolder70.7
Affirmall70.3
Amazonolder26.5
Amazonall23.6
Bloombergolder30
Bloombergall27.3
Googleolder17
Googleall16.4
LinkedIn6m54.1
LinkedInolder60.5
LinkedInall59.7
Meta6m24.5
Metaolder18
Metaall21.5
Microsoftolder8.9
Microsoftall7.3
Oktaall70.8
Pelotonolder100
Pelotonall100
TikTokolder35.6
TikTokall33
Uberolder24.3
Uberall20.3
Yelpall94.2
Why this score
high frequency100
unsolved100
Local progress
unseen