Your Dashboard
Interview Coaching
Learn
System Design
ML System Design
Code
Behavioral
Salary Negotiation
Interview Guides
Search
⌘K
Get Premium
Leetcode 3666. Minimum Operations to Equalize Binary String
Given a binary string s and an integer k, each operation flips exactly k distinct bits; find the minimum operations to make all characters '1' (or -1 if impossible). The core challenge is deciding reachability and shortest sequence of fixed-size flips under parity/combinatorial constraints, reducible to a shortest-path/DP problem on the space of zero-counts or to solving linear constraints rather than brute-force 2^n search.
Question Timeline
See when this question was last asked and where, including any notes left by other candidates.
All Regions
Comments
Hello Interview Premium
Your account is free and you can post anonymously if you choose.