Leetcode Problem 1418. Display Table of Food Orders in a Restaurant

1418. Display Table of Food Orders in a Restaurant

Leetcode Solutions

Using Hash Maps and Sorting

  1. Initialize a hash map (order_map) to store the count of each food item for each table.
  2. Initialize two sets (food_items and table_numbers) to store unique food items and table numbers.
  3. Iterate over each order in the orders list:
    • Add the food item to the food_items set.
    • Add the table number to the table_numbers set.
    • Increment the count of the food item for the corresponding table in order_map.
  4. Convert food_items and table_numbers to lists and sort them.
  5. Create the display table with the first row as headers, including 'Table' followed by sorted food items.
  6. For each table number, create a row with the table number followed by the counts of each food item in the sorted order.
  7. Return the completed display table.
UML Thumbnail

Using Default Dictionaries and Sorting

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