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LeetCode

LeetCode 3439: Reschedule Meetings for Maximum Free Time (Sliding Window)
·2 分鐘
LeetCode Daily Medium Sliding Window Two Pointers Intervals Array
LeetCode 解題紀錄
LeetCode 30: Substring with Concatenation of All Words
·2 分鐘
LeetCode Daily Hard String Sliding Window Two Pointers Hash Map Frequency-Counter Brute-Force
三種作法：暴力、計數優化、偏移量滑動視窗。
LeetCode 209: Minimum Size Subarray Sum
·1 分鐘
LeetCode Daily Medium Array Sliding Window Two Pointers Prefix Sum Binary-Search
滑動視窗與雙指針，最小化子陣列長度（總和 ≥ target）。
LeetCode 1695: Maximum Erasure Value (Sliding Window)
·1 分鐘
LeetCode Daily Medium Sliding Window Two Pointers Array Hashset
LeetCode 解題紀錄
LeetCode 1497: Check If Array Pairs Are Divisible by k
·1 分鐘
LeetCode Daily Medium Array Hash Map Modulo Math Counting Complement
餘數配對與雜湊表；特別處理 0 與 k/2 的餘數。
LeetCode 1071: Greatest Common Divisor of Strings
·1 分鐘
LeetCode Daily Easy 字串 數學 GCD
LeetCode 解題紀錄
LeetCode 904: Fruit Into Baskets
·1 分鐘
LeetCode Daily Medium Sliding Window Hash Map Two Pointers Variable Window
LeetCode 解題紀錄 - 可變大小滑動窗口與雜湊表
LeetCode 76: Minimum Window Substring
·1 分鐘
LeetCode Daily Hard Sliding Window String Hash Map Two Pointers Variable Window
LeetCode 解題紀錄 - 可變大小滑動窗口與字符計數
LeetCode 1658: Minimum Operations to Reduce X to Zero
·1 分鐘
LeetCode Daily Medium Sliding Window Array Reverse Thinking Prefix Sum
LeetCode 解題紀錄 - 反向思考與滑動窗口
LeetCode 1456: Maximum Number of Vowels in a Substring of Given Length
·1 分鐘
LeetCode Daily Medium Sliding Window String Vowel Counting Fixed Window
LeetCode 解題紀錄 - 固定大小滑動窗口與元音計數