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→Step 4: Replace "crossed" with "covered" for clarity ("crossed" was not used before and one can wonder if it means something new). |
→Step 4: make clear that value is uncovered (based on https://medium.com/@riya.tendulkar/the-assignment-problem-using-hungarian-algorithm-4f105729af18) |
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===Step 4===
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This is equivalent to subtracting a number from all rows which are not covered and adding the same number to all columns which are covered. These operations do not change optimal assignments.
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