Table 1: The obtained solutions by cuckoo search algorithm for Example 1.

(days) (days) (units) ($) (units/year)NP ($)

1051.974328.5130.0230397.70608091.80
1534.942912.5130.0030422.25608251.64
3019.071594.4029.9430522.94609669.48
4519.061597.5529.8930598.09611172.25
6019.051600.7129.8430673.30612676.25