JZLeetCode

High quality leet code solutions in Java, Python, C++, and Rust.

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Featured

• LeetCode 2962 Count Subarrays Where Max Element Appears at Least K Times

  16 Sep, 2026

  Solutions for LeetCode 2962, medium, tags: array, sliding window, binary search.

• LeetCode 338 Counting Bits

  16 Sep, 2026

  Solutions for LeetCode 338, easy, tags: dynamic programming, bit manipulation.

• LeetCode 211 Design Add and Search Words Data Structure

  15 Sep, 2026

  Solutions for LeetCode 211, medium, tags: string, depth-first search, design, trie.

• LeetCode 974 Subarray Sums Divisible by K

  15 Sep, 2026

  Solutions for LeetCode 974, medium, tags: array, hash table, prefix sum.

• LeetCode 572 Subtree of Another Tree

  14 Sep, 2026

  Solutions for LeetCode 572, easy, tags: tree, dfs, string matching, binary tree, hash function.

• LeetCode 904 Fruit Into Baskets

  14 Sep, 2026

  Solutions for LeetCode 904, medium, tags: array, hash table, sliding window.

• LeetCode 224 Basic Calculator

  13 Sep, 2026

  Solutions for LeetCode 224, hard, tags: math, string, stack, recursion.

• LeetCode 32 Longest Valid Parentheses

  12 Sep, 2026

  Solutions for LeetCode 32, hard, tags: string, stack, dynamic programming.

• LeetCode 234 Palindrome Linked List

  12 Sep, 2026

  Solutions for LeetCode 234, easy, tags: linked list, two pointers, stack, recursion.

• LeetCode 96 Unique Binary Search Trees

  11 Sep, 2026

  Solutions for LeetCode 96, medium, tags: math, dynamic programming, tree, binary search tree.