Quick Overview

Delete digits while preserving order to maximize a number whose counts of both ones and twos are even, with linear-time handling of long strings.

Maximize a Digit Subsequence with Even Counts of Ones and Twos

Company: DRW

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: hard

Interview Round: HR Screen

Overview: Delete digits while preserving order to maximize a number whose counts of both ones and twos are even, with linear-time handling of long strings.

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