http://hex4c59.cc/tags/hash-table/Recent content in Hash-Table on Hex4C59's BlogHugo -- 0.150.0zh-cnFri, 27 Mar 2026 15:18:58 +0800http://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/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。