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Day 8 #8

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shivvamm opened this issue Aug 4, 2023 · 0 comments
Open

Day 8 #8

shivvamm opened this issue Aug 4, 2023 · 0 comments

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@shivvamm
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shivvamm commented Aug 4, 2023

A unival tree (which stands for "universal value") is a tree where all nodes under it have the same value.

Given the root to a binary tree, count the number of unival subtrees.

For example, the following tree has 5 unival subtrees:

0
 / \
1   0
   / \
  1   0
 / \
1   1
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