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C++ Reference: class CumulativeIsAfterSubsetConstraint
Note: This documentation is automatically generated.
Given that the "tasks" are part of a cumulative constraint, this adds a
constraint that propagate the fact that: var >= max(end of substasks) +
offset.
TODO(user): I am not sure this is the best way, but it does at least push
the level zero bound on the large cumulative instances.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-08-06 UTC."],[[["\u003cp\u003eThe \u003ccode\u003eCumulativeIsAfterSubsetConstraint\u003c/code\u003e enforces that a given variable's value must be greater than or equal to the maximum end time of a subset of tasks plus an offset, within a cumulative constraint.\u003c/p\u003e\n"],["\u003cp\u003eIt aims to improve the lower bound (level zero bound) on large cumulative instances by propagating this constraint.\u003c/p\u003e\n"],["\u003cp\u003eIt is implemented with methods like \u003ccode\u003ePropagate\u003c/code\u003e and \u003ccode\u003eRegisterWith\u003c/code\u003e for constraint propagation and integration with the solver.\u003c/p\u003e\n"],["\u003cp\u003eIt requires parameters such as the variable, capacity, subtasks, offsets, and helper classes for scheduling and demand management within the model.\u003c/p\u003e\n"]]],["The `CumulativeIsAfterSubsetConstraint` class in C++ enforces that a variable (`var`) is greater than or equal to the maximum end time of a subset of tasks (`subtasks`) plus an offset. It aims to push the bound on large cumulative instances. Key methods include the constructor, `Propagate` (returns a boolean), and `RegisterWith` (registers with a watcher). The constraint is defined using integer variables, affine expressions, task subsets, offsets, and helper classes.\n"],null,[]]
