Whatnot Interview Questions — 7 DSA Problems

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

Most frequently asked Whatnot LeetCode questions for software engineering interviews.

• Number of Islands (MEDIUM) — Array, Depth-First Search, Breadth-First Search, Union Find, Matrix
• Valid Palindrome II (EASY) — Two Pointers, String, Greedy
• Group Anagrams (MEDIUM) — Array, Hash Table, String, Sorting
• Remove All Adjacent Duplicates In String (EASY) — String, Stack
• Search a 2D Matrix II (MEDIUM) — Array, Binary Search, Divide and Conquer, Matrix
• Word Search (MEDIUM) — Array, String, Backtracking, Depth-First Search, Matrix
• Squares of a Sorted Array (EASY) — Array, Two Pointers, Sorting