How to Solve Lexicographically Smallest Generated String Problem
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Lexicographically Smallest Generated String
You are given two strings, str1 and str2, of lengths n and m, respectively. A string word of length n + m - 1 is defined to be generated by str1 and str2 if it satisfies the following conditions for e...
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Understanding the Lexicographically Smallest Generated String Problem
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Problem Statement
You are given two strings, str1 and str2, of lengths n and m, respectively. A string word of length n + m - 1 is defined to be generated by str1 and str2 if it satisfies the following conditions for each index 0 <= i <= n - 1: If str1[i] == 'T', the substring of word with size m starting at index i is equal to str2, i.e., word[i..(i + m - 1)] == str2. If str1[i] == 'F', the substring of word with size m starting at index i is not equal to str2, i.e., word[i..(i + m - 1)] != str2. Return the lexicographically smallest possible string that can be generated by str1 and str2. If no string can be generated, return an empty string "".
Lexicographically Smallest Generated String
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Examples
str1 = "TFTF", str2 = "ab""ababa"The table below represents the string "ababa" Index T/F Substring of length m 0 'T' "ab" 1 'F' "ba" 2 'T' "ab" 3 'F' "ba" The strings "ababa" and "ababb" can be generated by str1 and str2. Return "ababa" since it is the lexicographically smaller string.
str1 = "TFTF", str2 = "abc"""No string that satisfies the conditions can be generated.
str1 = "F", str2 = "d""a"Constraints
1 <= n == str1.length <= 1041 <= m == str2.length <= 500str1 consists only of 'T' or 'F'.str2 consists only of lowercase English characters.How Interview Coder Helps with Leetcode Problems
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