Zopsmart Interview Questions — 18 DSA Problems

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

Most frequently asked Zopsmart LeetCode questions for software engineering interviews.

• Zigzag Conversion (MEDIUM) — String
• Trapping Rain Water (HARD) — Array, Two Pointers, Dynamic Programming, Stack, Monotonic Stack
• Reverse Nodes in Even Length Groups (MEDIUM) — Linked List
• Minimum Window Substring (HARD) — Hash Table, String, Sliding Window
• Bulls and Cows (MEDIUM) — Hash Table, String, Counting
• Fraction Addition and Subtraction (MEDIUM) — Math, String, Simulation
• Remove K Digits (MEDIUM) — String, Stack, Greedy, Monotonic Stack
• Container With Most Water (MEDIUM) — Array, Two Pointers, Greedy
• Group Anagrams (MEDIUM) — Array, Hash Table, String, Sorting
• Reverse Words in a String (MEDIUM) — Two Pointers, String
• 3Sum (MEDIUM) — Array, Two Pointers, Sorting
• Best Time to Buy and Sell Stock (EASY) — Array, Dynamic Programming
• Add Two Numbers (MEDIUM) — Linked List, Math, Recursion
• Letter Combinations of a Phone Number (MEDIUM) — Hash Table, String, Backtracking
• Reverse Linked List (EASY) — Linked List, Recursion
• Reverse Nodes in k-Group (HARD) — Linked List, Recursion
• Longest Palindromic Substring (MEDIUM) — Two Pointers, String, Dynamic Programming
• Sort Colors (MEDIUM) — Array, Two Pointers, Sorting