Suppose you are given as input a rooted tree t. a labeling of the vertices with labels from the set {1, 2, 3} is called valid if the label of every vertex is different from the label of its parent. the cost of a labeling is the number of vertices with smaller labels than their parents. design an efficient algorithm to find the minimum cost of a valid labeling of t.
prove that your algorithm is correct and analyze its running time.

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a

step-by-step explanation:

yes, i heard the "tea" with james charles and a few other beauty gurus. i believe charles is in the wrong and i believe tati the most. tati didn't lie about james charles but may have exaggerated because he never sexually assaulted anyone. jeffery star is a really good friend to all and out anyone that needs it, until you mess with one of his "sisters"! james will never rise over jeffery or tati, he's way to sensitive and dramatic to rise about them. i think all three of them will make up and be friends again because they always get over it.

i hope this with your