# Basic Knowledge

- [Binary Tree](/leetcode/basic-knowledge/binary-tree.md)
- [Bit Operation](/leetcode/basic-knowledge/bit-operation.md)
- [Heapify](/leetcode/basic-knowledge/heapify.md)
- [Java Syntax](/leetcode/basic-knowledge/java-syntax.md)
- [Monotonous Stack](/leetcode/basic-knowledge/monotonous-stack.md)
- [Trie Tree](/leetcode/basic-knowledge/trie-tree.md)