{ "data": { "question": { "questionId": "2669", "questionFrontendId": "2606", "boundTopicId": null, "title": "Find the Substring With Maximum Cost", "titleSlug": "find-the-substring-with-maximum-cost", "content": "
You are given a string s
, a string chars
of distinct characters and an integer array vals
of the same length as chars
.
The cost of the substring is the sum of the values of each character in the substring. The cost of an empty string is considered 0
.
The value of the character is defined in the following way:
\n\nchars
, then its value is its corresponding position (1-indexed) in the alphabet.\n\n\t'a'
is 1
, the value of 'b'
is 2
, and so on. The value of 'z'
is 26
.i
is the index where the character occurs in the string chars
, then its value is vals[i]
.Return the maximum cost among all substrings of the string s
.
\n
Example 1:
\n\n\nInput: s = "adaa", chars = "d", vals = [-1000]\nOutput: 2\nExplanation: The value of the characters "a" and "d" is 1 and -1000 respectively.\nThe substring with the maximum cost is "aa" and its cost is 1 + 1 = 2.\nIt can be proven that 2 is the maximum cost.\n\n\n
Example 2:
\n\n\nInput: s = "abc", chars = "abc", vals = [-1,-1,-1]\nOutput: 0\nExplanation: The value of the characters "a", "b" and "c" is -1, -1, and -1 respectively.\nThe substring with the maximum cost is the empty substring "" and its cost is 0.\nIt can be proven that 0 is the maximum cost.\n\n\n
\n
Constraints:
\n\n1 <= s.length <= 105
s
consist of lowercase English letters.1 <= chars.length <= 26
chars
consist of distinct lowercase English letters.vals.length == chars.length
-1000 <= vals[i] <= 1000
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Your code is compiled with level two optimization (-O2
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Most standard library headers are already included automatically for your convenience.
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Node.js 16.13.2
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