diff --git a/1170-Compare-Strings-by-Frequency-of-the-Smallest-Character.py b/1170-Compare-Strings-by-Frequency-of-the-Smallest-Character.py new file mode 100644 index 0000000..9fc2f0f --- /dev/null +++ b/1170-Compare-Strings-by-Frequency-of-the-Smallest-Character.py @@ -0,0 +1,41 @@ +''' +Let's define a function f(s) over a non-empty string s, which calculates the frequency of the smallest character in s. For example, if s = "dcce" then f(s) = 2 because the smallest character is "c" and its frequency is 2. + +Now, given string arrays queries and words, return an integer array answer, where each answer[i] is the number of words such that f(queries[i]) < f(W), where W is a word in words. + + + +Example 1: + +Input: queries = ["cbd"], words = ["zaaaz"] +Output: [1] +Explanation: On the first query we have f("cbd") = 1, f("zaaaz") = 3 so f("cbd") < f("zaaaz"). + +Example 2: + +Input: queries = ["bbb","cc"], words = ["a","aa","aaa","aaaa"] +Output: [1,2] +Explanation: On the first query only f("bbb") < f("aaaa"). On the second query both f("aaa") and f("aaaa") are both > f("cc"). + + + +Constraints: + + 1 <= queries.length <= 2000 + 1 <= words.length <= 2000 + 1 <= queries[i].length, words[i].length <= 10 + queries[i][j], words[i][j] are English lowercase letters. +''' +class Solution: + def numSmallerByFrequency(self, queries: List[str], words: List[str]) -> List[int]: + res = [] + freq = collections.Counter() + + for word in words: + for i in range(1, word.count(min(word))): + freq[i] += 1 + + for query in queries: + res.append(freq[query.count(min(query))]) + + return res