1Count Univalue SubtreesMediumTreeDepth-First SearchBinary Tree
Solve → 2Distribute Coins in Binary TreeMediumTreeDepth-First SearchBinary Tree
Solve → 3Count Univalue SubtreesMediumTreeDepth-First SearchBinary Tree
Solve → 4Distribute Coins in Binary TreeMediumTreeDepth-First SearchBinary Tree
Solve →