!Keyword: PERT/CPM;
MAX   3 DIG + 4 FOUND + 2 POURB + 3 JOISTS + 5 WALLS 
+ 3 RAFTERS + 4 FLOOR + 6 ROUGH + 7 ROOF + 5 FINISH + 2 SCAPE
ST
- DIG = -1
- FOUND + DIG = 0
- JOISTS - POURB - WALLS + FOUND = 0
- FLOOR + JOISTS = 0
- RAFTERS - SCAPE + POURB + WALLS = 0
- ROUGH + FLOOR = 0
- ROOF + RAFTERS = 0
- FINISH + ROUGH + ROOF = 0
+ FINISH + SCAPE = +1
END

