[Homework 4#] 推薦系統

[andrewyao67]

提交連結

https://judge.ccclub.io/status/57a99e7d61e365fccbc41db307ec040a

程式碼

# input data
inputdata=""
p = eval(input())/100
data = input()
while data != "end":
    inputdata += data + "\n"
    data = input()

# get the data
data = inputdata.split("\n")
data.remove(data[-1])
my_dict = {}
for line in data:
    line = line.split(" ")
    name = line[0]
    items = {i for i in line[1:]}
    my_dict[name] = items

# implement
result = ""
for name in my_dict.keys():
    my_list = my_dict.get(name)
    num = len(my_list)
    diff = {}
    for other_people in my_dict.keys():
        if (other_people == name):
            continue
        count = 0
        other_list = my_dict.get(other_people)
        for other_option in other_list:
            if other_option in my_list:
                count+=1
        if (float((count)/num) >= p):
            for other_option in other_list:
                if other_option not in my_list:
                    diff[other_option] = name
    result+=name+" "
    for d in diff.keys():
        result+=d+" "
    result+="\n"
print(result)

錯誤訊息

問題描述

答案的物品順序不知道怎麼處理，內容都對，圖片是output。(錢包、鑰匙的順序錯)

[TJ72]

因為你用 set 來存商品，但 set 裡的資料本身是沒有順序的，所以輸出的資料不會保持原本的順序。要不要試試看用串列的方式存資料，然後再用 set 的 method 進行運算？

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