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Companies
Apple
Breadth First Search
Breadth First Search
0/20 solved
Number of Islands
MEDIUM
Coin Change
MEDIUM
Binary Tree Level Order Traversal
MEDIUM
Symmetric Tree
EASY
Word Ladder
HARD
Same Tree
EASY
Binary Tree Zigzag Level Order Traversal
MEDIUM
Cheapest Flights Within K Stops
MEDIUM
Path Sum
EASY
Clone Graph
MEDIUM
Evaluate Division
MEDIUM
Merge Two Binary Trees
EASY
Vertical Order Traversal of a Binary Tree
HARD
Sum of Left Leaves
EASY
Number of Operations to Make Network Connected
MEDIUM
Binary Tree Level Order Traversal II
MEDIUM
Possible Bipartition
MEDIUM
Number of Connected Components in an Undirected Graph
MEDIUM
Cut Off Trees for Golf Event
HARD
Serialize and Deserialize N-ary Tree
HARD