Binary Search Tree LCA

For this challenge you will attempt to find the lowest common ancestor of a binary search tree.

167 solutions

Solution

Max Heap Checker

For this challenge you will determine whether or not a heap is a max heap.

78 solutions

Solution

Symmetric Tree

For this challenge you will traverse a binary tree and determine if it is symmetric.

187 solutions

Solution

Binary Tree LCA

For this challenge you will attempt to find the lowest common ancestor of a binary tree.

96 solutions

Solution

Tree Constructor

For this challenge you will determine if an array of integer pairs can form a binary tree properly.

102 solutions

Solution

Shortest Path

For this challenge you will have to determine the shortest path from one node to an end node.

980 solutions

Solution

Weighted Path

For this challenge you will have to determine the shortest weighted path from one node to an end node.

323 solutions

Solution

Hamiltonian Path

For this challenge you will determine whether a given set of vertices form a Hamiltonian path on the graph.

126 solutions

Solution

Vertex Covering

For this challenge you will determine whether a given set of vertices can cover all the edges in the graph.

129 solutions

Solution

Farthest Nodes

For this challenge you will determine what nodes are farthest apart.

135 solutions

Solution

Bipartite Matching

For this challenge you will be finding the maximum cardinality matching of a bipartite graph.

21 solutions

Solution

Seating Students

For this challenge you will determine how many different ways students can sit next to each other.

76 solutions

Solution

City Traffic

For this challenge you will be finding the maximum traffic that will enter a node.

21 solutions

Solution