Lowest Common Ancestor Interview Questions

Hash Table Two Pointers Tree Binary Tree Binary Lifting Lowest Common Ancestor

Rank

#236MediumFrequency: 86.4%

Lowest Common Ancestor of a Binary Tree

Tree Depth-First Search Binary Tree Binary Lifting Lowest Common Ancestor

Rank

#2217MediumFrequency: 83.7%

Step-By-Step Directions From a Binary Tree Node to Another

Asked at Databricks

String Tree Depth-First Search Binary Tree Binary Lifting Lowest Common Ancestor

Rank

#1190MediumFrequency: 82.4%

Smallest Common Region

Asked at Airbnb

Array Hash Table String Tree Depth-First Search Breadth-First Search Binary Lifting Lowest Common Ancestor

Rank

#235MediumFrequency: 66.5%

Lowest Common Ancestor of a Binary Search Tree

Tree Depth-First Search Binary Search Tree Binary Tree Binary Lifting Lowest Common Ancestor

Rank

#1780MediumFrequency: 50.6%

Lowest Common Ancestor of a Binary Tree II

Tree Depth-First Search Binary Tree Binary Lifting Lowest Common Ancestor

Rank

#896MediumFrequency: 38.5%

Smallest Subtree with all the Deepest Nodes

Hash Table Tree Depth-First Search Breadth-First Search Binary Tree Binary Lifting Lowest Common Ancestor DP on Trees

Rank

#1218MediumFrequency: 34%

Lowest Common Ancestor of Deepest Leaves

Hash Table Tree Depth-First Search Breadth-First Search Binary Tree Binary Lifting Lowest Common Ancestor DP on Trees

Rank

#1816MediumFrequency: 26.5%

Lowest Common Ancestor of a Binary Tree IV

Hash Table Tree Depth-First Search Binary Tree Binary Lifting Lowest Common Ancestor

Rank

#1883MediumFrequency: 23.6%

Find Distance in a Binary Tree

Hash Table Tree Depth-First Search Breadth-First Search Binary Tree Binary Lifting Lowest Common Ancestor

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Rank

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Lowest Common Ancestor Interview Questions

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Lowest Common Ancestor of a Binary Tree III

Hash Table Two Pointers Tree Binary Tree Binary Lifting Lowest Common Ancestor

Rank

#236MediumFrequency: 86.4%

Lowest Common Ancestor of a Binary Tree

Tree Depth-First Search Binary Tree Binary Lifting Lowest Common Ancestor

Rank

#2217MediumFrequency: 83.7%

Step-By-Step Directions From a Binary Tree Node to Another

Asked at Databricks

String Tree Depth-First Search Binary Tree Binary Lifting Lowest Common Ancestor

Rank

#1190MediumFrequency: 82.4%

Smallest Common Region

Asked at Airbnb

Array Hash Table String Tree Depth-First Search Breadth-First Search Binary Lifting Lowest Common Ancestor

Rank

#235MediumFrequency: 66.5%

Lowest Common Ancestor of a Binary Search Tree

Tree Depth-First Search Binary Search Tree Binary Tree Binary Lifting Lowest Common Ancestor

Rank

#1780MediumFrequency: 50.6%

Lowest Common Ancestor of a Binary Tree II

Tree Depth-First Search Binary Tree Binary Lifting Lowest Common Ancestor

Rank

#896MediumFrequency: 38.5%

Smallest Subtree with all the Deepest Nodes

Hash Table Tree Depth-First Search Breadth-First Search Binary Tree Binary Lifting Lowest Common Ancestor DP on Trees

Rank

#1218MediumFrequency: 34%

Lowest Common Ancestor of Deepest Leaves

Hash Table Tree Depth-First Search Breadth-First Search Binary Tree Binary Lifting Lowest Common Ancestor DP on Trees

Rank

#1816MediumFrequency: 26.5%

Lowest Common Ancestor of a Binary Tree IV

Hash Table Tree Depth-First Search Binary Tree Binary Lifting Lowest Common Ancestor

Rank

#1883MediumFrequency: 23.6%

Find Distance in a Binary Tree