Implement resource levelling and smoothing for each individual resource over the project life. Implement resource levelling and smoothing for both R1 and R2 with higher priority for R1 (R1 cost is triple that of R2)

XYZ Project has 20 activities, each activity uses 4 different resources with their limits given in the following table. Activity Predecessors A B D Duration (day) 6 3 4 A 6 E F G H 7 5 2 2 1 2 6 Daily Resource Requirements (unit) R1 R2 R3 R4 5 2 2 2 3 5 2 3 2 4 4 5 4 3 5 3 5 2 3 4 1 4 9 4 1 4 3 5 5 4 0 3 2 4 3 1 5 4 6 3 3 4 3 2 2 8 2 2 2 2 1 4 4 3 5 5 4 6 3 2 3 4 4 5 4 2 5 3 3 3 2 4 6 2 1 6 2 7 J 1 2 A, B D A,B G, H F C, E E, G, H I, K F,L L J, M, N 0 D, O PR Q K L M N 0 P Q R S 4 2 3 5 8 2 6 T 2 Daily Resource Availability Limits 8 12 12 15