http://hex4c59.cc/leetcode/Recent content in LeetCode on Hex4C59's BlogHugo -- 0.150.0zh-cnhttp://hex4c59.cc/leetcode/2779-maximum-beauty-of-an-array-after-applying-operation/Wed, 25 Mar 2026 12:00:00 +0800http://hex4c59.cc/leetcode/2779-maximum-beauty-of-an-array-after-applying-operation/LeetCode 2779 数组的最大美丽值题解，排序后转化为不定长滑动窗口问题，寻找最长的合法区间。http://hex4c59.cc/leetcode/0003-longest-substring-without-repeating-characters/Wed, 25 Mar 2026 12:00:00 +0800http://hex4c59.cc/leetcode/0003-longest-substring-without-repeating-characters/LeetCode 3 无重复字符的最长子串题解，使用不定长滑动窗口 + 哈希表维护窗口内字符状态。http://hex4c59.cc/leetcode/3090-maximum-length-substring-with-two-occurrences/Wed, 25 Mar 2026 12:00:00 +0800http://hex4c59.cc/leetcode/3090-maximum-length-substring-with-two-occurrences/LeetCode 3090 每个字符最多出现两次的最长子字符串题解，不定长滑动窗口的变体，限制窗口内每个字符出现次数不超过 2。http://hex4c59.cc/leetcode/1456-maximum-number-of-vowels-in-a-substring-of-given-length/Sun, 22 Mar 2026 19:15:00 +0800http://hex4c59.cc/leetcode/1456-maximum-number-of-vowels-in-a-substring-of-given-length/LeetCode 1456 定长子串中元音的最大数目题解，使用定长滑动窗口统计子串中的最大元音数。http://hex4c59.cc/leetcode/0001-two-sum/Sun, 22 Mar 2026 18:30:00 +0800http://hex4c59.cc/leetcode/0001-two-sum/LeetCode 1 两数之和题解，包含暴力枚举与哈希表两种思路。