Quick Overview

This question tests practical string manipulation and modular arithmetic by requiring implementation of a classic Caesar cipher with correct case-preserving wraparound logic. It also evaluates algorithmic optimization skills, specifically the ability to recognize repeated computation and replace per-character modulo operations with a precomputed translation table for large inputs.

Caesar Cipher with Translation-Table Optimization

Company: Amazon

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: medium

Interview Round: Technical Screen

Quick Answer: This question tests practical string manipulation and modular arithmetic by requiring implementation of a classic Caesar cipher with correct case-preserving wraparound logic. It also evaluates algorithmic optimization skills, specifically the ability to recognize repeated computation and replace per-character modulo operations with a precomputed translation table for large inputs.

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