Problem intelligence
Minimum Add to Make Parentheses Valid
MEDIUM · 7 companies · Bracket Sequences · Greedy · Stack · String
Interview priority
57
medium
Target overlap
0/0
Recency
80
Trend
50
Frequency
72
Company observations
Amazonolder38.3
Amazonall35.1
Bloombergolder32.5
Bloombergall31.9
Google90d17.3
Google6m25.4
Googleolder29.1
Googleall30.4
IBMolder37.9
IBMall33.4
Meta6m43.4
Metaolder72
Metaall71.8
Microsoftolder8.9
Microsoftall7.3
Siemensolder71.3
Siemensall65.1
Why this score
unsolved100
recent activity80
high frequency72
Local progress
unseen