Problem intelligence
Count the Number of Good Subsequences
MEDIUM · 3 companies · Combinatorics · Counting · Hash Table · Math · String
Interview priority
51
medium
Target overlap
0/0
Recency
30
Trend
50
Frequency
100
Company observations
Nvidiaolder39.1
Nvidiaall45.9
TuSimpleall100
UKGolder78.9
UKGall78.7
Why this score
high frequency100
unsolved100
Local progress
unseen