NetflixCoding·60 minMembers
Count Disjoint String Pairs
Members only
Count unique index pairs (i<j) of lowercase strings that share no common character; bitmask each word's 26-letter set and AND the masks.
SWE
bitmask
string
hashmap
medium
Frequency
Low
Last asked
2026-08-02
Stage
phone-screen · onsite-coding
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