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Published: Feb 20, 2024 License: MIT Imports: 1 Imported by: 0

README

统计包含给定前缀的字符串

给你一个字符串数组 words 和一个字符串 pref

返回 words__中以 pref 作为 前缀 的字符串的数目。

字符串 s前缀 就是  s 的任一前导连续字符串。

示例 1:

输入:words = ["pay","attention","practice","attend"], pref = "at"
输出:2
解释:以 "at" 作为前缀的字符串有两个,分别是:"attention" 和 "attend" 。

示例 2:

输入:words = ["leetcode","win","loops","success"], pref = "code"
输出:0
解释:不存在以 "code" 作为前缀的字符串。

提示:

  • 1 <= words.length <= 100
  • 1 <= words[i].length, pref.length <= 100
  • words[i]pref 由小写英文字母组成

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