Is Leetcode Blind 75 Enough for FAANG?

LeetCode is a popular online platform for coding practice that offers a variety of problems to solve. Blind 75 LeetCode problems refer to a curated list of 75 LeetCode problems that are considered essential for cracking technical interviews at top-tier tech companies.

These problems are considered to be challenging, and solving them requires a thorough understanding of data structures and algorithms.

In this article, we will delve into the significance of the Blind 75 LeetCode problems and discuss tips for solving them.

Importance of Blind 75 LeetCode Problems

Cracking a technical interview at a top-tier tech company requires high proficiency in data structures and algorithms. The Blind 75 LeetCode problems are considered to be the gold standard for interview preparation because they cover a wide range of topics and provide a rigorous test of a candidate’s coding abilities.

These problems are designed to be challenging, and solving them requires a deep understanding of core computer science concepts.

Solving Blind 75 LeetCode problems also helps candidates to develop problem-solving skills and improve their coding efficiency.

These problems are not just meant to be solved but also to be optimized for time and space complexity.

Hence, solving these problems can significantly enhance candidates’ coding abilities and make themproblem solvers.

Tips for Solving Blind 75 LeetCode Problems

1. Focus on the basics: Before attempting the Blind 75 LeetCode problems, it is essential to have a thorough understanding of the basic data structures and algorithms. Candidates should be comfortable with arrays, linked lists, trees, graphs, and sorting and searching algorithms.
2. Practice regularly: Practice makes perfect, and regular practice of Blind 75 LeetCode problems can help candidates to develop problem-solving skills and improve their coding efficiency. Consistent practice also helps candidates to identify their strengths and weaknesses and work on them accordingly.
3. Analyze the problem statement: Analyzing the problem statement carefully is crucial for solving Blind 75 LeetCode problems. Candidates should take their time to understand the problem statement and requirements before jumping into the coding process.
4. Choose the right data structure: Choosing the right data structure is critical for solving Blind 75 LeetCode problems efficiently. Candidates should carefully analyze the problem statement and choose the most suitable data structure to solve the problem.
5. Optimize for time and space complexity: Blind 75 LeetCode problems are not just meant to be solved but are also optimized for time and space complexity. Candidates should be familiar with techniques such as dynamic programming, memoization, and greedy algorithms to optimize their solutions.
6. Test and debug: Testing and debugging are critical steps in solving Blind 75 LeetCode problems. Candidates should thoroughly test their code for various inputs and edge cases and debug any errors that arise.

Blind 75 LeetCode Questions

Array

• Two Sum
• Best Time to Buy and Sell Stock
• Contains Duplicate
• Product of Array Except Self
• Maximum Subarray
• Maximum Product Subarray
• Find Minimum in Rotated Sorted Array
• Search in Rotated Sorted Array
• 3 Sum
• Container With Most Water

Binary

• Sum of Two Integers
• Number of 1 Bits
• Counting Bits
• Missing Number
• Reverse Bits

Dynamic Programming

• Climbing Stairs
• Coin Change
• Longest Increasing Subsequence
• Longest Common Subsequence
• Word Break Problem
• Combination Sum
• House Robber
• House Robber II
• Decode Ways
• Unique Paths
• Jump Game

Graph

• Clone Graph
• Course Schedule
• Pacific Atlantic Water Flow
• Number of Islands
• Longest Consecutive Sequence
• Alien Dictionary (Leetcode Premium)
• Graph Valid Tree (Leetcode Premium)
• Number of Connected Components in an Undirected Graph (Leetcode Premium)

Interval

• Insert Interval
• Merge Intervals
• Non-overlapping Intervals
• Meeting Rooms (Leetcode Premium)
• Meeting Rooms II (Leetcode Premium)

Linked List

• Reverse a Linked List
• Detect Cycle in a Linked List
• Merge Two Sorted Lists
• Merge K Sorted Lists
• Remove Nth Node From End Of List
• Reorder List

Matrix

• Set Matrix Zeroes
• Spiral Matrix
• Rotate Image
• Word Search

String

• Longest Substring Without Repeating Characters
• Longest Repeating Character Replacement
• Minimum Window Substring
• Valid Anagram
• Group Anagrams
• Valid Parentheses
• Valid Palindrome
• Longest Palindromic Substring
• Palindromic Substrings
• Encode and Decode Strings (Leetcode Premium)

Tree

• Maximum Depth of Binary Tree
• Same Tree
• Invert/Flip Binary Tree
• Binary Tree Maximum Path Sum
• Binary Tree Level Order Traversal
• Serialize and Deserialize Binary Tree
• Subtree of Another Tree
• Construct Binary Tree from Preorder and Inorder Traversal
• Validate Binary Search Tree
• Kth Smallest Element in a BST
• Lowest Common Ancestor of BST
• Implement Trie (Prefix Tree)
• Add and Search Word
• Word Search II

Heap

• Merge K Sorted Lists
• Top K Frequent Elements
• Find Median from Data Stream

Conclusion

Blind 75 LeetCode problems are essential to technical interview preparation, and solving them can significantly improve a candidate’s coding abilities. These problems are designed to be challenging, and solving them requires a deep understanding of data structures and algorithms.

By following the tips mentioned above and practicing regularly, candidates can develop problem-solving skills and improve their coding efficiency, ultimately enhancing their chances of cracking a technical interview at a top-tier tech company.