Binary Tree Search

class Node {
  value: number;
  left: Node | null;
  right: Node | null;

  constructor(value: number) {
    this.value = value;
    this.left = null;
    this.right = null;
  }
}

class BinarySearchTree {
  root: Node | null;

  constructor() {
    this.root = null;
  }

  // Insert a value
  insert(value: number): void {
    const newNode = new Node(value);

    if (this.root === null) {
      this.root = newNode;
      return;
    }

    let current = this.root;
    while (true) {
      if (value < current.value) {
        if (current.left === null) {
          current.left = newNode;
          break;
        }
        current = current.left;
      } else {
        if (current.right === null) {
          current.right = newNode;
          break;
        }
        current = current.right;
      }
    }
  }

  // Search for a value
  search(value: number): boolean {
    let current = this.root;

    while (current !== null) {
      if (value === current.value) return true;
      current = value < current.value ? current.left : current.right;
    }
    return false;
  }
}

const bst = new BinarySearchTree();
bst.insert(10);
bst.insert(5);
bst.insert(15);
console.log(bst.search(5)); // Output: true
console.log(bst.search(7)); // Output: false

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