Class Solution
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
-
Method Summary
Modifier and TypeMethodDescriptionjava.util.List
<java.lang.Integer> peopleIndexes
(java.util.List<java.util.List<java.lang.String>> favoriteCompanies) Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
-
Constructor Details
-
Solution
public Solution()
-
-
Method Details
-
peopleIndexes
public java.util.List<java.lang.Integer> peopleIndexes(java.util.List<java.util.List<java.lang.String>> favoriteCompanies)
-