Class Solution

  • All Implemented Interfaces:

    
    public final class Solution
    
                        

    1418 - Display Table of Food Orders in a Restaurant\.

    Medium

    Given the array orders, which represents the orders that customers have done in a restaurant. More specifically <code>ordersi=customerName<sub>i</sub>,tableNumber<sub>i</sub>,foodItem<sub>i</sub></code> where <code>customerName<sub>i</sub></code> is the name of the customer, <code>tableNumber<sub>i</sub></code> is the table customer sit at, and <code>foodItem<sub>i</sub></code> is the item customer orders.

    Return the restaurant's “display table. The “display table” is a table whose row entries denote how many of each food item each table ordered. The first column is the table number and the remaining columns correspond to each food item in alphabetical order. The first row should be a header whose first column is “Table”, followed by the names of the food items. Note that the customer names are not part of the table. Additionally, the rows should be sorted in numerically increasing order.

    Example 1:

    Input: orders = \[\["David","3","Ceviche"],"Corina","10","Beef Burrito","David","3","Fried Chicken","Carla","5","Water","Carla","5","Ceviche","Rous","3","Ceviche"]

    Output: ["Table","Beef Burrito","Ceviche","Fried Chicken","Water","3","0","2","1","0","5","0","1","0","1","10","1","0","0","0"]

    Explanation: The displaying table looks like:

    Table,Beef Burrito,Ceviche,Fried Chicken,Water

    3 ,0 ,2 ,1 ,0

    5 ,0 ,1 ,0 ,1

    10 ,1 ,0 ,0 ,0

    For the table 3: David orders "Ceviche" and "Fried Chicken", and Rous orders "Ceviche".

    For the table 5: Carla orders "Water" and "Ceviche".

    For the table 10: Corina orders "Beef Burrito".

    Example 2:

    Input: orders = \[\["James","12","Fried Chicken"],"Ratesh","12","Fried Chicken","Amadeus","12","Fried Chicken","Adam","1","Canadian Waffles","Brianna","1","Canadian Waffles"]

    Output: ["Table","Canadian Waffles","Fried Chicken","1","2","0","12","0","3"]

    Explanation:

    For the table 1: Adam and Brianna order "Canadian Waffles".

    For the table 12: James, Ratesh and Amadeus order "Fried Chicken".

    Example 3:

    Input: orders = \[\["Laura","2","Bean Burrito"],"Jhon","2","Beef Burrito","Melissa","2","Soda"]

    Output: ["Table","Bean Burrito","Beef Burrito","Soda","2","1","1","1"]

    Constraints:

    • 1 &lt;= orders.length &lt;= 5 * 10^4

    • orders[i].length == 3

    • <code>1 <= customerName<sub>i</sub>.length, foodItem<sub>i</sub>.length <= 20</code>

    • <code>customerName<sub>i</sub></code> and <code>foodItem<sub>i</sub></code> consist of lowercase and uppercase English letters and the space character.

    • <code>tableNumber<sub>i</sub> </code>is a valid integer between 1 and 500.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
    • Field Summary

      Fields 
      Modifier and Type Field Description
    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()
    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
    • Method Summary

      Modifier and Type Method Description
      final List<List<String>> displayTable(List<List<String>> orders)
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait