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14.最长公共前缀.rs
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14.最长公共前缀.rs
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/*
* @lc app=leetcode.cn id=14 lang=rust
*
* [14] 最长公共前缀
*
* https://leetcode-cn.com/problems/longest-common-prefix/description/
*
* algorithms
* Easy (41.08%)
* Likes: 1875
* Dislikes: 0
* Total Accepted: 664K
* Total Submissions: 1.6M
* Testcase Example: '["flower","flow","flight"]'
*
* 编写一个函数来查找字符串数组中的最长公共前缀。
*
* 如果不存在公共前缀,返回空字符串 ""。
*
*
*
* 示例 1:
*
*
* 输入:strs = ["flower","flow","flight"]
* 输出:"fl"
*
*
* 示例 2:
*
*
* 输入:strs = ["dog","racecar","car"]
* 输出:""
* 解释:输入不存在公共前缀。
*
*
*
* 提示:
*
*
* 1 <= strs.length <= 200
* 0 <= strs[i].length <= 200
* strs[i] 仅由小写英文字母组成
*
*
*/
// @lc code=start
impl Solution {
pub fn longest_common_prefix(strs: Vec<String>) -> String {
match strs.is_empty() {
true => "".to_string(),
_ => strs.iter().skip(1).fold(strs[0].clone(), |acc, x| {
acc
.chars()
.zip(x.chars())
.take_while(|(x, y)| x == y)
.map(|(x, _)| x)
.collect()
}),
}
}
}
// @lc code=end