EarnIn Interview Questions — 4 DSA Problems

4 problems with full solutions in Python, Java, C++, JavaScript, Go, Rust.

Most frequently asked EarnIn LeetCode questions for software engineering interviews.

• Longest Palindromic Substring (MEDIUM) — Two Pointers, String, Dynamic Programming
• Number of Islands (MEDIUM) — Array, Depth-First Search, Breadth-First Search, Union Find, Matrix
• Add Two Numbers (MEDIUM) — Linked List, Math, Recursion
• Two Sum (EASY) — Array, Hash Table