Tree Coding Problems

Navigate hierarchical data structures

252
Total Problems
41
Easy
150
Medium
60
Hard
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Master DSA Topics - January, 2026

Practice problems across 75+ categories

Tree Coding Problems

Practice problems frequently asked at Tree 252 problems | 41 Easy | 150 Medium | 60 Hard

# Problem Difficulty Topics
16 Binary Tree Level Order Traversal II Medium
TreeBreadth-First SearchBinary Tree
17 Binary Tree Longest Consecutive Sequence Medium
TreeDepth-First SearchBinary Tree
18 Binary Tree Longest Consecutive Sequence II Medium
TreeDepth-First SearchBinary Tree
19 Binary Tree Maximum Path Sum Hard
Dynamic ProgrammingTreeDepth-First Search
20 Binary Tree Paths Easy
StringBacktrackingTree
21 Binary Tree Postorder Traversal Easy
StackTreeDepth-First Search
22 Binary Tree Preorder Traversal Easy
StackTreeDepth-First Search
23 Binary Tree Pruning Medium
TreeDepth-First SearchBinary Tree
24 Binary Tree Right Side View Medium
TreeDepth-First SearchBreadth-First Search
25 Binary Tree Tilt Easy
TreeDepth-First SearchBinary Tree
26 Binary Tree Upside Down Medium
TreeDepth-First SearchBinary Tree
27 Binary Tree Vertical Order Traversal Medium
Hash TableTreeDepth-First Search
28 Binary Tree Zigzag Level Order Traversal Medium
TreeBreadth-First SearchBinary Tree
29 Boundary of Binary Tree Medium
TreeDepth-First SearchBinary Tree
30 Build Binary Expression Tree From Infix Expression Hard
StringStackTree
Showing 16-30 of 252
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public class MyFirstJavaProgram { Edit & Run

   /* This is my first java program.
    * This will print 'Hello, World!' as the output
    */

   public static void main(String []args) {
      System.out.println("Hello, World!"); // prints
   }
}

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