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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step-by-step explanation:

-387129 iq

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

your question is incomplete, write all the numbers in the sequence that it tells you.  

step-by-step explanation: