{"id":8064,"date":"2022-09-11T17:49:43","date_gmt":"2022-09-11T12:19:43","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-i-do-not-understand-how-to-build-sets-for-each-classroom\/"},"modified":"2022-09-11T17:49:43","modified_gmt":"2022-09-11T12:19:43","slug":"solved-i-do-not-understand-how-to-build-sets-for-each-classroom","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-i-do-not-understand-how-to-build-sets-for-each-classroom\/","title":{"rendered":"[Solved] I do not understand how to build sets for each classroom"},"content":{"rendered":"

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It is not clear what your input data looks like, so I’m going to make some assumptions.<\/p>\n

First I am going to assume that you have a discrete set of teaching periods per week – say, ['Monday 9am-10am', 'Monday 10am-11am', ...]<\/code> and so on, and that every class schedule consists of a subset of these teaching periods.<\/p>\n

Second I will assume that each set of periods runs for exactly one whole term – no partial terms – and that we are considering exactly one term’s courses at a time.<\/p>\n

Third I will assume that all classes are distinct – you can’t have MATH101 and ARTMATH101 sharing a room and a professor – if a teacher is teaching one course, he can’t (legally) be teaching another course at the same time; in other words, there are no exceptions to the ‘can only be teaching one class at once’ rule.<\/p>\n

class Professor(object):\n    def __init__(self, name, id):\n        self.name = name\n        self.id = id\n\nclass Course(object):\n    def __init__(self, professor_ids, periods):\n        self.professors = set(professor_ids)\n        self.periods = periods  # where 'period' is an enum of all teaching periods in a week\n\nfrom collections import Counter\n\ndef is_professor_double_booked(professor, all_courses):\n    # find all courses taught by this professor\n    pcourses = [course in all_courses if professor.id in course.professor_ids]\n    # count how many times each period is booked\n    period_bookings = Counter(p for course in pcourses for p in course.periods)\n    # return (any period booked twice?)\n    return len(period_bookings) and (period_bookings.most_common()[0][1] > 1)\n\ndef professors_who_are_double_booked(professors, courses):\n    for prof in professors:\n        if is_professor_double_booked(prof, courses):\n            print(prof.name)\n<\/code><\/pre>\n<\/p><\/div>\n
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solved I do not understand how to build sets for each classroom <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] It is not clear what your input data looks like, so I’m going to make some assumptions. First I am going to assume that you have a discrete set of teaching periods per week – say, [‘Monday 9am-10am’, ‘Monday 10am-11am’, …] and so on, and that every class schedule consists of a subset of … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[349],"class_list":["post-8064","post","type-post","status-publish","format-standard","hentry","category-solved","tag-python"],"yoast_head":"\n[Solved] I do not understand how to build sets for each classroom - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-i-do-not-understand-how-to-build-sets-for-each-classroom\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] I do not understand how to build sets for each classroom - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] It is not clear what your input data looks like, so I’m going to make some assumptions. 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