{ "data": { "question": { "questionId": "1273", "questionFrontendId": "1170", "categoryTitle": "Algorithms", "boundTopicId": 22197, "title": "Compare Strings by Frequency of the Smallest Character", "titleSlug": "compare-strings-by-frequency-of-the-smallest-character", "content": "
Let the function f(s)
be the frequency of the lexicographically smallest character in a non-empty string s
. For example, if s = "dcce"
then f(s) = 2
because the lexicographically smallest character is 'c'
, which has a frequency of 2.
You are given an array of strings words
and another array of query strings queries
. For each query queries[i]
, count the number of words in words
such that f(queries[i])
< f(W)
for each W
in words
.
Return an integer array answer
, where each answer[i]
is the answer to the ith
query.
\n
Example 1:
\n\n\nInput: queries = ["cbd"], words = ["zaaaz"]\nOutput: [1]\nExplanation: On the first query we have f("cbd") = 1, f("zaaaz") = 3 so f("cbd") < f("zaaaz").\n\n\n
Example 2:
\n\n\nInput: queries = ["bbb","cc"], words = ["a","aa","aaa","aaaa"]\nOutput: [1,2]\nExplanation: On the first query only f("bbb") < f("aaaa"). On the second query both f("aaa") and f("aaaa") are both > f("cc").\n\n\n
\n
Constraints:
\n\n1 <= queries.length <= 2000
1 <= words.length <= 2000
1 <= queries[i].length, words[i].length <= 10
queries[i][j]
, words[i][j]
consist of lowercase English letters.定义一个函数 f(s)
,统计 s
中(按字典序比较)最小字母的出现频次 ,其中 s
是一个非空字符串。
例如,若 s = \"dcce\"
,那么 f(s) = 2
,因为字典序最小字母是 \"c\"
,它出现了 2 次。
现在,给你两个字符串数组待查表 queries
和词汇表 words
。对于每次查询 queries[i]
,需统计 words
中满足 f(queries[i])
< f(W)
的 词的数目 ,W
表示词汇表 words
中的每个词。
请你返回一个整数数组 answer
作为答案,其中每个 answer[i]
是第 i
次查询的结果。
\n\n
示例 1:
\n\n\n输入:queries = [\"cbd\"], words = [\"zaaaz\"]\n输出:[1]\n解释:查询 f(\"cbd\") = 1,而 f(\"zaaaz\") = 3 所以 f(\"cbd\") < f(\"zaaaz\")。\n\n\n
示例 2:
\n\n\n输入:queries = [\"bbb\",\"cc\"], words = [\"a\",\"aa\",\"aaa\",\"aaaa\"]\n输出:[1,2]\n解释:第一个查询 f(\"bbb\") < f(\"aaaa\"),第二个查询 f(\"aaa\") 和 f(\"aaaa\") 都 > f(\"cc\")。\n\n\n
\n\n
提示:
\n\n1 <= queries.length <= 2000
1 <= words.length <= 2000
1 <= queries[i].length, words[i].length <= 10
queries[i][j]
、words[i][j]
都由小写英文字母组成\\u7248\\u672c\\uff1a \\u7f16\\u8bd1\\u65f6\\uff0c\\u5c06\\u4f1a\\u91c7\\u7528 \\u4e3a\\u4e86\\u4f7f\\u7528\\u65b9\\u4fbf\\uff0c\\u5927\\u90e8\\u5206\\u6807\\u51c6\\u5e93\\u7684\\u5934\\u6587\\u4ef6\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8\\u5bfc\\u5165\\u3002<\\/p>\"],\"java\":[\"Java\",\" \\u7248\\u672c\\uff1a \\u4e3a\\u4e86\\u65b9\\u4fbf\\u8d77\\u89c1\\uff0c\\u5927\\u90e8\\u5206\\u6807\\u51c6\\u5e93\\u7684\\u5934\\u6587\\u4ef6\\u5df2\\u88ab\\u5bfc\\u5165\\u3002<\\/p>\\r\\n\\r\\n \\u5305\\u542b Pair \\u7c7b: https:\\/\\/docs.oracle.com\\/javase\\/8\\/javafx\\/api\\/javafx\\/util\\/Pair.html <\\/p>\"],\"python\":[\"Python\",\" \\u7248\\u672c\\uff1a \\u4e3a\\u4e86\\u65b9\\u4fbf\\u8d77\\u89c1\\uff0c\\u5927\\u90e8\\u5206\\u5e38\\u7528\\u5e93\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8 \\u5bfc\\u5165\\uff0c\\u5982\\uff1aarray<\\/a>, bisect<\\/a>, 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