Arguments: int item_id, bool is_item_in,
int64_t* lower_bound,
int64_t* upper_bound
Gets the lower and upper bound when the item is in or out of the knapsack.
To ensure objects are correctly initialized, this method should not be
called before ::Init.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-08-06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\u003e\u003ccode\u003eBaseKnapsackSolver\u003c/code\u003e serves as the foundational class for all knapsack solvers within the OR-Tools library.\u003c/p\u003e\n"],["\u003cp\u003eIt provides essential functionalities such as initialization with problem data (profits, weights, capacities), solving the knapsack problem, and retrieving the optimal solution.\u003c/p\u003e\n"],["\u003cp\u003eMethods like \u003ccode\u003eGetLowerAndUpperBoundWhenItem\u003c/code\u003e and \u003ccode\u003ebest_solution\u003c/code\u003e offer insights into the solution space and individual item placements.\u003c/p\u003e\n"],["\u003cp\u003eUsers should call \u003ccode\u003eInit\u003c/code\u003e to set up the problem before invoking \u003ccode\u003eSolve\u003c/code\u003e to find the optimal solution within the given time limit.\u003c/p\u003e\n"]]],["`BaseKnapsackSolver` is a foundational class for solving knapsack problems. Key actions include initializing the solver (`Init`) with item profits, weights, and capacities, and solving the problem (`Solve`) to find the optimal profit. The class provides methods to check if an item is in the optimal solution (`best_solution`), retrieve bounds for items being in or out of the knapsack (`GetLowerAndUpperBoundWhenItem`), and get the solver's name (`GetName`). There are methods for the constructor and destructor.\n"],null,[]]
