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Delhivery

Java Full Stack Developer

Find Duplicate in Read-Only Array

Medium

TechnicalcodingCandidate Not Selected

Array Coding

The array cannot be modified. Size = N + 1, values range from 1 to N. Find any duplicate. Time Complexity: O(N), Space Complexity: O(1). Example: Input: {10,1,2,3,5,4,9,8,5,6,4} → Output: 5

This question was asked in

Delhivery Java Full Stack Developer Interview Experience

The interview process at Delhivery consisted of two rounds focused on technical skills and low-level design. Candidates faced a variety of questions ranging from architecture choices to coding challenges and database design concepts. The overall difficulty was medium, with a blend of theoretical and practical questions that tested both knowledge and application skills.