LeetCode Problems
Practice with the most common coding interview problems. Interview Coder helps you solve these in real-time.
Easy
150+
Problems covered
Medium
200+
Problems covered
Hard
100+
Problems covered
Popular Problem Categories
Arrays & Strings
- • Two Sum
- • Best Time to Buy and Sell Stock
- • Contains Duplicate
- • Valid Anagram
- • Group Anagrams
Linked Lists
- • Reverse Linked List
- • Merge Two Sorted Lists
- • Linked List Cycle
- • Remove Nth Node From End
- • Reorder List
Trees & Graphs
- • Maximum Depth of Binary Tree
- • Invert Binary Tree
- • Binary Tree Level Order Traversal
- • Validate Binary Search Tree
- • Number of Islands
Dynamic Programming
- • Climbing Stairs
- • House Robber
- • Coin Change
- • Longest Increasing Subsequence
- • Word Break
Sorting & Searching
- • Binary Search
- • Search in Rotated Sorted Array
- • Find Minimum in Rotated Sorted Array
- • Kth Largest Element
- • Merge Intervals
Backtracking
- • Subsets
- • Permutations
- • Combination Sum
- • Word Search
- • N-Queens
How Interview Coder Helps
- ✓Real-time Hints: Get contextual hints when you're stuck
- ✓Code Suggestions: Receive intelligent code completions
- ✓Approach Guidance: Learn optimal problem-solving strategies
- ✓Time Complexity Analysis: Understand the efficiency of your solution
- ✓Edge Case Detection: Identify cases you might have missed
Company-Specific Problem Lists
🔵 FAANG Companies
Facebook, Amazon, Apple, Netflix, Google
💼 Microsoft
Top problems asked at Microsoft
🚀 Startups
Stripe, Airbnb, Uber, Lyft
🏦 Finance
Goldman Sachs, JPMorgan, Bloomberg