def get_quantities(table_to_foods):
""" (dict of {str: list of str}) -> dict of {str: int}
The table_to_foods dict has table names as keys (e.g., 't1', 't2', and so on) and each value
is a list of foods ordered for that table.
Return a dictionary where each key is a food from table_to_foods and each
value is the quantity of that food that was ordered.
>>> get_quantities({'t1': ['Vegetarian stew', 'Poutine', 'Vegetarian stew'], 't3': ['Steak pie', 'Poutine', 'Vegetarian stew'], 't4': ['Steak pie', 'Steak pie']})
{'Vegetarian stew': 3, 'Poutine': 2, 'Steak pie': 3}
"""
food_to_quantity = {}
# Accumulate the food information here.
# I have no idea what it should be at here.
return food_to_quantity
如何正確寫入此代碼? 當我使用元組時,我嘗試了它,但我不知道如何計算時間。返回一個字典,以菜爲關鍵,菜的次數作爲值排序