17 lines
701 B
MiniZinc
17 lines
701 B
MiniZinc
predicate fzn_cumulative_opt(array[int] of var opt int: s,
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array[int] of var int: d,
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array[int] of var int: r, var int: b) =
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let {
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set of int: tasks =
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{i | i in index_set(s) where ub(r[i]) > 0 /\ ub(d[i]) > 0 },
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set of int: times =
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min([ lb(s[i]) | i in tasks ]) ..
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max([ ub(s[i]) + ub(d[i]) | i in tasks ])
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}
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in
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forall( t in times ) (
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b >= sum( i in tasks ) (
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bool2int( occurs(s[i]) /\ deopt(s[i]) <= t /\ t < deopt(s[i]) + d[i] ) * r[i]
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)
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);
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