“…We go through the following toy example to illustrate it. W2 (1,8) W3 (3,7) W4 (8,2) W5 (1,6) W6 (6,4) t1 (2,5) t2 (3,6) t6 (5,6) t4 (6,5) t3 (6,7) t5 (7,6) (a) Initial locations W2 (1,8) W3 (3,7) W4 (8,2) W5 (1,6) W6 (6,4) t1 (2,5) t2 (3,6) t6 (5,6) t4 (6,5) t3 (6,7) t5 (7,6) (b) OPT result W2 (1,8) W3 (3,7) W4 (8,2) W5 (1,6) W6 (6,...…”