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Hash-Map

LeetCode 496: Next Greater Element I
·1 分鐘
LeetCode Daily Easy Array Stack Monotonic-Stack Hash-Map Next-Greater-Element
單調遞減堆疊處理 nums2，預先建立下一個更大元素對照表，回答 nums1 查詢。
LeetCode 30: Substring with Concatenation of All Words
·2 分鐘
LeetCode Daily Hard String Sliding-Window Two-Pointers Hash-Map Brute-Force Frequency-Counting
三種作法：暴力、計數優化、偏移量滑動視窗。
LeetCode 1497: Check If Array Pairs Are Divisible by k
·1 分鐘
LeetCode Daily Medium Array Hash-Map Complement Counting Math Modulo
餘數配對與雜湊表；特別處理 0 與 k/2 的餘數。
LeetCode 904: Fruit Into Baskets
·1 分鐘
LeetCode Daily Medium Sliding-Window Variable-Window Two-Pointers Hash-Map
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 String Sliding-Window Variable-Window Two-Pointers Hash-Map
LeetCode 解題紀錄 - 可變大小滑動窗口與字符計數
LeetCode 567: Permutation in String
·2 分鐘
LeetCode Daily Medium String Sliding-Window Hash-Map Frequency-Counting Permutation
LeetCode 解題紀錄 - 使用字符頻率的滑動窗口
LeetCode 438: Find All Anagrams in a String
·2 分鐘
LeetCode Daily Medium String Sliding-Window Hash-Map Anagram Frequency-Counting
LeetCode 解題紀錄 - 使用字符頻率的滑動窗口
LeetCode 3: Longest Substring Without Repeating Characters
·1 分鐘
LeetCode Daily Medium Sliding-Window Hash-Map
LeetCode 解題紀錄
LeetCode 1399: Count Largest Group
·1 分鐘
LeetCode Daily Easy Hash-Map
LeetCode 解題紀錄
LeetCode 2325: Decode the Message
·1 分鐘
LeetCode Daily Easy Hash-Map
LeetCode 解題紀錄