import json

with open("movies.json", "r", encoding="utf-8") as f:
    data = json.load(f)
movies = data["movies"]

# 1.① 评分最高和最低
max_rating_movie = max(movies, key=lambda x: x["rating"])
min_rating_movie = min(movies, key=lambda x: x["rating"])
print(max_rating_movie["title"], max_rating_movie["rating"])
print(min_rating_movie["title"], min_rating_movie["rating"])

# 2.② 各类型电影数量
genre_count = {}
for movie in movies:
    genre = movie["genre"]
    genre_count[genre] = genre_count.get(genre, 0) + 1
print(genre_count)

# 3.③ 各导演电影数量
director_count = {}
for movie in movies:
    director = movie["director"]
    director_count[director] = director_count.get(director, 0) + 1
print(director_count)

# 4.④ 2020年（含）以后电影数量
count_2020_later = 0
for movie in movies:
    if movie["year"] >= 2020:
        count_2020_later += 1
print(count_2020_later)