HashCode2020/hashCode.py at master · kandrio/HashCode2020 · GitHub

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import statistics

class Library:
    def __init__(self, N, T, M, ids, mean, days, libid):
        self.id = libid
        self.books = N
        self.signup = T
        self.rate = M
        self.bookIDs = [int(i) for i in ids]
        self.mean = mean
        self.score = M * mean * (days - T)

    def updateScore(self, R):
        self.score = self.rate * self.mean * (R - self.signup)

    def printDetails(self):
        print("Books : ", self.books, "Signup time : ", self.signup, "Rate : ", self.rate, "Score = ", self.score)
        print("Book ids : ")
        for i in self.bookIDs:
            print(i, end=" ")
        print("")


class Solver:
    def __init__(self, B, L, D, scores):
        self.days = D
        self.books = B
        self.libraries = L
        self.bookScores = [int(i) for i in scores]
        self.libraryList = []
        self.remaining = D
        self.chosen = []

    def printScores(self):
        print("Books : ", self.books, "Libraries : ", self.libraries, "Days : ", self.days)
        print("Book Scores : ")
        for i in self.bookScores:
            print(i, end=" ")
        print ("")

    def addLibrary(self, library):
        self.libraryList.append(library)

    def printLibraryDetails(self):
        id = 0
        print("=========== Library Details ============")
        for i in self.libraryList:
            print("Library id = " , id)
            i.printDetails()
            id = id+1
        print("")

    def updateMetric(self):
        for library in self.libraryList:
            library.updateScore(self.remaining)

    def chooseLibrary(self):
        self.libraryList = sorted(self.libraryList, key = lambda i:i.score, reverse = True)
        if self.libraryList[0].signup < self.remaining:
            self.chosen.append((self.libraryList[0], self.days - self.remaining))
            first = self.libraryList.pop(0)
            self.remaining = self.remaining - first.signup
            self.updateMetric()
        else:
            self.libraryList.pop(0)

    def driver(self):
        while(self.libraryList):
            self.chooseLibrary()

    def results(self, output):
        toPrint = ""
        toPrint = toPrint+str(len(self.chosen))+ "\n"
        for i in self.chosen:
            booksToPrint = self.findBooks(i)
            toPrint = toPrint + str(i[0].id) + " " + str(len(booksToPrint)) + "\n"
            for j in booksToPrint:
                toPrint = toPrint + str(j) + " "
            toPrint = toPrint + "\n"
        toPrint = toPrint + "\n"
        f = open(output, "w+")
        f.write(toPrint)
        f.close()


    def findBooks(self, library):
        lib = library[0]
        time = library[1]
        lib.bookIDs = sorted(lib.bookIDs, key = lambda i:self.bookScores[i], reverse=True)
        numOfBooks = (self.days - self.remaining + lib.signup)*lib.rate
        numOfBooks = lib.books if (numOfBooks > lib.books) else numOfBooks
        ret = []
        for i in range(numOfBooks):
            ret.append(lib.bookIDs[i])

        return ret


def run(inputs, outputs):
    input = inputs
    inputFile = open(input)

    line1 = inputFile.readline()
    arr1 = line1.split(" ")
    arr1 = [int(i) for i in arr1]
    line2 = inputFile.readline()
    scores = line2.split(" ")
    solution = Solver(arr1[0],arr1[1],arr1[2],scores)
    #solution.printScores()

    counter = 0
    for i in range(arr1[1]):
        libStats = inputFile.readline()
        libstats = [int(i) for i in libStats.split(" ")]

        ids = inputFile.readline()
        books = ids.split(" ")
        books = [int(i) for i in books]

        costs = [solution.bookScores[i] for i in books]
        average = statistics.mean(costs)

        newLibrary = Library(libstats[0], libstats[1], libstats[2], books, average, solution.days, counter)
        counter = counter + 1
        solution.addLibrary(newLibrary)

    #solution.printLibraryDetails()

    solution.driver()
    solution.results(outputs)

inputs = ["./inputs/a_example.txt", "./inputs/b_read_on.txt", "./inputs/c_incunabula.txt", "./inputs/d_tough_choices.txt", "./inputs/e_so_many_books.txt", "./inputs/f_libraries_of_the_world.txt"]
outputs = ["./inputs/a_example.out", "./inputs/b_read_on.out", "./inputs/c_incunabula.out", "./inputs/d_tough_choices.out", "./inputs/e_so_many_books.out", "./inputs/f_libraries_of_the_world.out"]

for i in range(len(inputs)):
    run(inputs[i], outputs[i])