Package g1401_1500.s1452_people_whose_list_of_favorite_companies_is_not_a_subset_of_another_list

Class Solution

java.lang.Object

g1401_1500.s1452_people_whose_list_of_favorite_companies_is_not_a_subset_of_another_list.Solution

public class Solution
extends Object

1452 - People Whose List of Favorite Companies Is Not a Subset of Another List.

Medium

Given the array favoriteCompanies where favoriteCompanies[i] is the list of favorites companies for the ith person ( indexed from 0 ).

Return the indices of people whose list of favorite companies is not a subset of any other list of favorites companies. You must return the indices in increasing order.

Example 1:

Input: favoriteCompanies = [[“leetcode”,“google”,“facebook”],[“google”,“microsoft”],[“google”,“facebook”],[“google”],[“amazon”]]

Output: [0,1,4]

Explanation: Person with index=2 has favoriteCompanies[2]=[“google”,“facebook”] which is a subset of favoriteCompanies[0]=[“leetcode”,“google”,“facebook”] corresponding to the person with index 0. Person with index=3 has favoriteCompanies[3]=[“google”] which is a subset of favoriteCompanies[0]=[“leetcode”,“google”,“facebook”] and favoriteCompanies[1]=[“google”,“microsoft”]. Other lists of favorite companies are not a subset of another list, therefore, the answer is [0,1,4].

Example 2:

Input: favoriteCompanies = [[“leetcode”,“google”,“facebook”],[“leetcode”,“amazon”],[“facebook”,“google”]]

Output: [0,1]

Explanation: In this case favoriteCompanies[2]=[“facebook”,“google”] is a subset of favoriteCompanies[0]=[“leetcode”,“google”,“facebook”], therefore, the answer is [0,1].

Example 3:

Input: favoriteCompanies = [[“leetcode”],[“google”],[“facebook”],[“amazon”]]

Output: [0,1,2,3]

Constraints:

• 1 <= favoriteCompanies.length <= 100
• 1 <= favoriteCompanies[i].length <= 500
• 1 <= favoriteCompanies[i][j].length <= 20
• All strings in favoriteCompanies[i] are distinct.
• All lists of favorite companies are distinct , that is, If we sort alphabetically each list then favoriteCompanies[i] != favoriteCompanies[j].
• All strings consist of lowercase English letters only.

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
List<Integer>	peopleIndexes(List<List<String>> favoriteCompanies)

Methods inherited from class java.lang.Object

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

Constructor Detail

Solution

public Solution()

Method Detail

peopleIndexes

public List<Integer> peopleIndexes(List<List<String>> favoriteCompanies)