Interview Q&A / Data Structures & Algorithms
Data Structures & Algorithms interview questions
Arrays, linked lists, hashing, trees and patterns, with line-by-line code and complexity.
Prefer rapid revision? Practise Data Structures & Algorithms short interview answers →
- How do you solve the N-Queens problem with backtracking?
Place one queen per row. For each column in the row, check that no earlier queen shares the column or a diagonal. If safe, place it and recurse to the next row; otherwise skip. Undo and try the next column.
AdvancedQuick answerCoding1 min read