Once the data are arranged in tabular form, we must establish an initial feasible solution to the problem. A number of different methods have been developed for this step. We now discuss two of them, the northwest-corner rule and the intuitive lowest-cost method.
The Northwest-Corner Rule
The northwest-corner rule requires that we start in the upper-left-hand cell (or northwest corner) of the table and allocate units to shipping routes as follows:
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