How to Solve Count Pairs Of Similar Strings Problem
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Count Pairs Of Similar Strings
You are given a 0-indexed string array words. Two strings are similar if they consist of the same characters. For example, "abca" and "cba" are similar since both consist of characters 'a', 'b', and '...
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Understanding the Count Pairs Of Similar Strings Problem
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Problem Statement
You are given a 0-indexed string array words. Two strings are similar if they consist of the same characters. For example, "abca" and "cba" are similar since both consist of characters 'a', 'b', and 'c'. However, "abacba" and "bcfd" are not similar since they do not consist of the same characters. Return the number of pairs (i, j) such that 0 <= i < j <= word.length - 1 and the two strings words[i] and words[j] are similar.
Count Pairs Of Similar Strings
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Examples
words = ["aba","aabb","abcd","bac","aabc"]2There are 2 pairs that satisfy the conditions: - i = 0 and j = 1 : both words[0] and words[1] only consist of characters 'a' and 'b'. - i = 3 and j = 4 : both words[3] and words[4] only consist of characters 'a', 'b', and 'c'.
words = ["aabb","ab","ba"]3There are 3 pairs that satisfy the conditions: - i = 0 and j = 1 : both words[0] and words[1] only consist of characters 'a' and 'b'. - i = 0 and j = 2 : both words[0] and words[2] only consist of characters 'a' and 'b'. - i = 1 and j = 2 : both words[1] and words[2] only consist of characters 'a' and 'b'.
words = ["nba","cba","dba"]0Since there does not exist any pair that satisfies the conditions, we return 0.
Constraints
1 <= words.length <= 1001 <= words[i].length <= 100words[i] consist of only lowercase English letters.How Interview Coder Helps with Leetcode Problems
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