Mathematics, 11.11.2019 22:31 datbih12345
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.
Answers: 3
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) ā sinh2(x) = 1 and (b) 1 ā tanh 2(x) = sech 2(x). solution (a) cosh2(x) ā sinh2(x) = ex + eāx 2 2 ā 2 = e2x + 2 + eā2x 4 ā = 4 = . (b) we start with the identity proved in part (a): cosh2(x) ā sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 ā sinh2(x) cosh2(x) = 1 or 1 ā tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 21:00
Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?
Answers: 2
Mathematics, 21.06.2019 21:10
Indicate the formula for the following conditions: p^c(n,r)=
Answers: 3
Mathematics, 21.06.2019 22:30
If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b
Answers: 1
Suppose you are given as input a rooted tree t. a labeling of the vertices with labels from the set...
History, 18.09.2019 21:30
Mathematics, 18.09.2019 21:30
Mathematics, 18.09.2019 21:30
Mathematics, 18.09.2019 21:30
Biology, 18.09.2019 21:30
Geography, 18.09.2019 21:30
English, 18.09.2019 21:30
Mathematics, 18.09.2019 21:30
Physics, 18.09.2019 21:30
Biology, 18.09.2019 21:30
Mathematics, 18.09.2019 21:30
Biology, 18.09.2019 21:30