LeetCode Solutions

Explore detailed LeetCode solutions in Java, C++ / Cpp, and Python with step-by-step explanations. Each solution includes time and space complexity analysis to help you optimize your coding skills for interviews and competitive programming.

 

Explore detailed LeetCode solutions in Java, C++ / Cpp, and Python with step-by-step explanations. Each solution includes time and space complexity analysis to help you optimize your coding skills for interviews and competitive programming.

In addition to core solutions, this collection is designed to help you understand why a particular approach works, not just how to write the code. Problems are explained using clear logic, edge-case handling, and optimal data structures commonly expected in technical interviews.

The solutions cover a wide range of difficulty levels, including Easy, Medium, and Hard problems, with a strong focus on frequently asked interview questions from arrays, strings, linked lists, trees, graphs, dynamic programming, greedy algorithms, and recursion. Wherever applicable, multiple approaches are discussed to compare brute-force methods with optimized solutions.

Whether you are preparing for FAANG interviews, practicing for online coding contests, or strengthening your problem-solving fundamentals, these LeetCode solutions provide a structured and practical learning path. The content is regularly updated to align with the latest problem patterns and interview trends.

Sorted:

989. Add to Array-Form of Integer LeetCode Solution 988. Smallest String Starting From Leaf LeetCode Solution 987. Vertical Order Traversal of a Binary Tree LeetCode Solution 986. Interval List Intersections LeetCode Solution 985. Sum of Even Numbers After Queries LeetCode Solution 984. String Without AAA or BBB LeetCode Solution 983. Minimum Cost For Tickets LeetCode Solution 982. Triples with Bitwise AND Equal To Zero LeetCode Solution 981. Time Based Key-Value Store LeetCode Solution 980. Unique Paths III LeetCode Solution 979. Distribute Coins in Binary Tree LeetCode Solution 978. Longest Turbulent Subarray LeetCode Solution 977. Squares of a Sorted Array LeetCode Solution 976. Largest Perimeter Triangle LeetCode Solution 975. Odd Even Jump LeetCode Solution 974. Subarray Sums Divisible by K LeetCode Solution 973. K Closest Points to Origin LeetCode Solution 972. Equal Rational Numbers LeetCode Solution 971. Flip Binary Tree To Match Preorder Traversal LeetCode Solution 970. Powerful Integers LeetCode Solution 969. Pancake Sorting LeetCode Solution 968. Binary Tree Cameras LeetCode Solution 967. Numbers With Same Consecutive Differences LeetCode Solution 966. Vowel Spellchecker LeetCode Solution 965. Univalued Binary Tree LeetCode Solution 964. Least Operators to Express Number LeetCode Solution 963. Minimum Area Rectangle II LeetCode Solution 962. Maximum Width Ramp LeetCode Solution 961. N-Repeated Element in Size 2N Array LeetCode Solution 960. Delete Columns to Make Sorted III LeetCode Solution