Problem intelligence
Serialize and Deserialize Binary Tree
HARD · 22 companies · Binary Tree · Breadth-First Search · Depth-First Search · Design · String · Tree
Interview priority
70
high
Target overlap
0/0
Recency
80
Trend
50
Frequency
100
Company observations
Amazon90d28.9
Amazon6m39
Amazonolder55.6
Amazonall56.5
Appleolder54.4
Appleall51
Atlassianolder34.4
Atlassianall33.3
Bloomberg90d36.8
Bloomberg6m34.2
Bloombergolder23.9
Bloombergall42.6
Citadelolder69
Citadelall68.2
DoorDasholder46.8
DoorDashall46.3
Flipkartolder50.6
Flipkartall43.2
General Motorsolder52.8
General Motorsall51.8
Google6m17.4
Googleolder34.7
Googleall37.8
Hiveolder82.4
Hiveall87.4
LinkedInolder56.7
LinkedInall63.4
Meta90d34.5
Meta6m32.7
Metaolder38.7
Metaall45
Microsoft90d48.3
Microsoft6m52.3
Microsoftolder55.3
Microsoftall59.3
Nutanixolder64.6
Nutanixall71.5
Nvidiaolder54.5
Nvidiaall52.3
Oracleolder26.5
Oracleall25.3
PayPalolder44
PayPalall40.9
Quora6m100
Quoraolder78.7
Quoraall77.6
tcsolder39.5
tcsall37.1
TikTokolder60.7
TikTokall59.3
Uber6m45.7
Uberolder32.1
Uberall57.5
Yahooall100
Why this score
high frequency100
unsolved100
recent activity80
Local progress
unseen