How to Solve Display Table of Food Orders in a Restaurant Leetcode Problem - Interview Coder Guide
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How to Solve Display Table of Food Orders in a Restaurant Problem

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Medium#1533
LeetCode Problem

Display Table of Food Orders in a Restaurant

Given the array orders, which represents the orders that customers have done in a restaurant. More specifically orders[i]=[customerNamei,tableNumberi,foodItemi] where customerNamei is the name of the ...

ArrayHash TableString+2 more

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Problem Breakdown

Understanding the Display Table of Food Orders in a Restaurant Problem

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Problem Statement

Given the array orders, which represents the orders that customers have done in a restaurant. More specifically orders[i]=[customerNamei,tableNumberi,foodItemi] where customerNamei is the name of the customer, tableNumberi is the table customer sit at, and foodItemi 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.

MediumProblem #1533
LeetCode

Display Table of Food Orders in a Restaurant

Related Topics
ArrayHash TableStringSortingOrdered Set
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Examples

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",
OUTPUT
Example output

Constraints

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