s-takaya1027 https://blog.hatena.ne.jp/s-takaya1027/ 何かやってみるブログ https://takayasugiyama.com/ 問題 https://leetcode.com/problems/longest-common-prefix/ 解いた # @param {String[]} strs # @return {String} def longest_common_prefix(strs) data = strs[0] result = "" data.chars.each_with_index do |char, index| if strs.all? { |str| str[index] == char} result += char else break end end result end 結果 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftakayasugiyama.com%2Fentry%2F2022%2F03%2F08%2F202328" title="LeetCode Longest Common Prefixを解いてみた - 何かやってみるブログ" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn-ak.f.st-hatena.com/images/fotolife/s/s-takaya1027/20220308/20220308202313.png Hatena Blog https://hatena.blog 2022-03-08 20:23:28 rich https://takayasugiyama.com/entry/2022/03/08/202328 1.0 100%