Затруднение със сортирането на речника на задача 06. Courses - Python Fundamentals / Dictionaries Exercise
Здравейте,
имам затрдунения със сортирането на речника в посочената задача,
а и в частност със сортирането.
Оставям pastebin на задачата, ще се радвам за съвети и насоки да реша проблемът.
6.Courses
Write a program that keeps information about courses. Each course has a name and registered students.
You will be receiving a course name and a student name, until you receive the command "end". Check if such course already exists, and if not, add the course. Register the user into the course. When you receive the command "end", print the courses with their names and total registered users, ordered by the count of registered users in descending order. For each contest print the registered users ordered by name in ascending order.
Input
- Until the "end" command is received, you will be receiving input in the format: "{courseName} : {studentName}".
- The product data is always delimited by " : ".
Output
- Print the information about each course in the following the format:
"{courseName}: {registeredStudents}" - Print the information about each student, in the following the format:
"-- {studentName}"
Examples
|
Input |
Output |
|
Programming Fundamentals : John Smith Programming Fundamentals : Linda Johnson JS Core : Will Wilson Java Advanced : Harrison White end |
Programming Fundamentals: 2 -- John Smith -- Linda Johnson JS Core: 1 -- Will Wilson Java Advanced: 1 -- Harrison White |
|
Algorithms : Jay Moore Programming Basics : Martin Taylor Python Fundamentals : John Anderson Python Fundamentals : Andrew Robinson Algorithms : Bob Jackson Python Fundamentals : Clark Lewis end |
Python Fundamentals: 3 -- Andrew Robinson -- Clark Lewis -- John Anderson Algorithms: 2 -- Bob Jackson -- Jay Moore Programming Basics: 1 -- Martin Taylor |
Благодаря предварително! :)
Не мога да разбера,обаче защо дава 80/100???? dict_course={} command=input() while command!="end": split_info=command.split(" : ") course=split_info[0] name=split_info[1] if course not in dict_course: dict_course[course]=[] dict_course[course].append(name) else : dict_course[course].append(name) command=input() for k in sorted(dict_course, key=lambda x: -len(dict_course[x])): print(k+": "+ f"{len(dict_course[k])}") for id in sorted(dict_course[k],key=lambda y:y[0]): print(f"-- {id}")Здравейте,
тествахте ли си кода преди да го изпратите тук, тъй като judge дава 0/100?
https://pastebin.com/Phr0cP0j - това е моето решение и минава 100/100 в judge.
Лек ден!
Ето и едно решение и от мен за любителите на функции :)
https://pastebin.com/PPWT9rUZ