2416 - Sum of Prefix Scores of Strings\.

Hard

You are given an array words of size n consisting of non-empty strings.

We define the score of a string word as the number of strings words[i] such that word is a prefix of words[i].

• For example, if words = ["a", "ab", "abc", "cab"], then the score of "ab" is 2, since "ab" is a prefix of both "ab" and "abc".

Return an array answer of size n where answer[i] is the sum of scores of every non-empty prefix of words[i].

Note that a string is considered as a prefix of itself.

Example 1:

Input: words = "abc","ab","bc","b"

Output: 5,4,3,2

Explanation: The answer for each string is the following:

• "abc" has 3 prefixes: "a", "ab", and "abc".

• There are 2 strings with the prefix "a", 2 strings with the prefix "ab", and 1 string with the prefix "abc".

The total is answer0 = 2 + 2 + 1 = 5.

• "ab" has 2 prefixes: "a" and "ab".

• There are 2 strings with the prefix "a", and 2 strings with the prefix "ab".

The total is answer1 = 2 + 2 = 4.

• "bc" has 2 prefixes: "b" and "bc".

• There are 2 strings with the prefix "b", and 1 string with the prefix "bc".

The total is answer2 = 2 + 1 = 3.

• "b" has 1 prefix: "b".

• There are 2 strings with the prefix "b".

The total is answer3 = 2.

Example 2:

Input: words = "abcd"

Output: 4

Explanation:

"abcd" has 4 prefixes: "a", "ab", "abc", and "abcd".

Each prefix has a score of one, so the total is answer0 = 1 + 1 + 1 + 1 = 4.

Constraints:

• 1 <= words.length <= 1000

• 1 <= words[i].length <= 1000

• words[i] consists of lowercase English letters.