Traditional Culture Encyclopedia - Hotel accommodation - There are four classes in the hotel, three classes a day, and each class has six days off every month to find a reasonable distribution method. Integral is not a problem. . .

There are four classes in the hotel, three classes a day, and each class has six days off every month to find a reasonable distribution method. Integral is not a problem. . .

The four classes are A, B, C, D, ABC goes to work on Monday, BCD on Tuesday, CDA on Wednesday, DAB on Thursday, Friday is the same as Monday, Saturday is the same as Tuesday, and the same day is the same as Wednesday, so that DAB will say goodbye, and then the next group will say goodbye once a month for four weeks! My own ideas, you can continue to ask if you don't understand, thank you!