Number of devices

Optimal Solution

Algorithm 3

Algorithm 4

Algorithm 5

10

13.8

13.8

13.8

15

20

42.6

42.6

42.6

54

30

79.2

79.6

80.4

88

40

126

149.8

131.4

143.8

50

186.4

199.4

194.8

223.8

60

219.8

274

252

286.6