Problem intelligence
Encrypt and Decrypt Strings
HARD · 3 companies · Array · Design · Hash Table · String · Trie
Interview priority
60
medium
Target overlap
0/0
Recency
80
Trend
50
Frequency
100
Company observations
Amazonolder5.1
Amazonall5
Duolingo90d100
Duolingo6m100
Duolingoolder100
Duolingoall100
Googleolder5
Googleall5
Why this score
high frequency100
unsolved100
recent activity80
Local progress
unseen