https://leetcode-solutions-5zk.pages.dev/tags/design/Recent content in Design on LeetCode 题解笔记Hugozh-cn2026 ZenzZweiMon, 11 May 2026 12:12:02 +0800https://leetcode-solutions-5zk.pages.dev/posts/2286-booking-concert-tickets-in-groups/Wed, 06 May 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2286-booking-concert-tickets-in-groups/Hard | Binary Search, Design, Binary Indexed Tree, Segment Treehttps://leetcode-solutions-5zk.pages.dev/posts/0745-prefix-and-suffix-search/Wed, 06 May 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0745-prefix-and-suffix-search/Hard | Array, Hash Table, String, Design, Triehttps://leetcode-solutions-5zk.pages.dev/posts/1483-kth-ancestor-of-a-tree-node/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1483-kth-ancestor-of-a-tree-node/Hard | Binary Search, Dynamic Programming, Bit Manipulation, Tree, Depth-First Search, Breadth-First Search, Designhttps://leetcode-solutions-5zk.pages.dev/posts/0677-map-sum-pairs/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0677-map-sum-pairs/Medium | Hash Table, String, Design, Triehttps://leetcode-solutions-5zk.pages.dev/posts/3242-design-neighbor-sum-service/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3242-design-neighbor-sum-service/Easy | Array, Hash Table, Design, Matrix, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3408-design-task-manager/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3408-design-task-manager/Medium | Hash Table, Design, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/3484-design-spreadsheet/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3484-design-spreadsheet/Medium | Array, Hash Table, String, Design, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/3508-implement-router/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3508-implement-router/Medium | Array, Hash Table, Binary Search, Design, Queue, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/3709-design-exam-scores-tracker/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3709-design-exam-scores-tracker/Medium | Array, Binary Search, Design, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3815-design-auction-system/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3815-design-auction-system/Medium | Hash Table, Design, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/3829-design-ride-sharing-system/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3829-design-ride-sharing-system/Medium | Hash Table, Design, Queue, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/3885-design-event-manager/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3885-design-event-manager/Medium | Array, Hash Table, Design, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2642-design-graph-with-shortest-path-calculator/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2642-design-graph-with-shortest-path-calculator/Hard | Graph Theory, Design, Heap (Priority Queue), Shortest Pathhttps://leetcode-solutions-5zk.pages.dev/posts/2671-frequency-tracker/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2671-frequency-tracker/Medium | Hash Table, Designhttps://leetcode-solutions-5zk.pages.dev/posts/2013-detect-squares/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2013-detect-squares/Medium | Array, Hash Table, Design, Counting, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/2034-stock-price-fluctuation/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2034-stock-price-fluctuation/Medium | Hash Table, Design, Heap (Priority Queue), Data Stream, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2043-simple-bank-system/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2043-simple-bank-system/Medium | Array, Hash Table, Design, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2069-walking-robot-simulation-ii/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2069-walking-robot-simulation-ii/Medium | Design, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2080-range-frequency-queries/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2080-range-frequency-queries/Medium | Array, Hash Table, Binary Search, Design, Segment Treehttps://leetcode-solutions-5zk.pages.dev/posts/2102-sequentially-ordinal-rank-tracker/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2102-sequentially-ordinal-rank-tracker/Hard | Design, Heap (Priority Queue), Data Stream, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2166-design-bitset/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2166-design-bitset/Medium | Array, Hash Table, String, Designhttps://leetcode-solutions-5zk.pages.dev/posts/2227-encrypt-and-decrypt-strings/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2227-encrypt-and-decrypt-strings/Hard | Array, Hash Table, String, Design, Triehttps://leetcode-solutions-5zk.pages.dev/posts/2241-design-an-atm-machine/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2241-design-an-atm-machine/Medium | Array, Greedy, Designhttps://leetcode-solutions-5zk.pages.dev/posts/2276-count-integers-in-intervals/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2276-count-integers-in-intervals/Hard | Design, Segment Tree, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2296-design-a-text-editor/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2296-design-a-text-editor/Hard | Linked List, String, Stack, Design, Simulation, Doubly-Linked Listhttps://leetcode-solutions-5zk.pages.dev/posts/2336-smallest-number-in-infinite-set/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2336-smallest-number-in-infinite-set/Medium | Hash Table, Design, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2349-design-a-number-container-system/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2349-design-a-number-container-system/Medium | Hash Table, Design, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2353-design-a-food-rating-system/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2353-design-a-food-rating-system/Medium | Array, Hash Table, String, Design, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2424-longest-uploaded-prefix/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2424-longest-uploaded-prefix/Medium | Hash Table, Binary Search, Union-Find, Design, Binary Indexed Tree, Segment Tree, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2502-design-memory-allocator/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2502-design-memory-allocator/Medium | Array, Hash Table, Design, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2526-find-consecutive-integers-from-a-data-stream/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2526-find-consecutive-integers-from-a-data-stream/Medium | Hash Table, Design, Queue, Counting, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/1286-iterator-for-combination/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1286-iterator-for-combination/Medium | String, Backtracking, Design, Iteratorhttps://leetcode-solutions-5zk.pages.dev/posts/1348-tweet-counts-per-frequency/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1348-tweet-counts-per-frequency/Medium | Hash Table, String, Binary Search, Design, Sorting, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/1352-product-of-the-last-k-numbers/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1352-product-of-the-last-k-numbers/Medium | Array, Math, Design, Data Stream, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1357-apply-discount-every-n-orders/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1357-apply-discount-every-n-orders/Medium | Array, Hash Table, Designhttps://leetcode-solutions-5zk.pages.dev/posts/1381-design-a-stack-with-increment-operation/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1381-design-a-stack-with-increment-operation/Medium | Array, Stack, Designhttps://leetcode-solutions-5zk.pages.dev/posts/1396-design-underground-system/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1396-design-underground-system/Medium | Hash Table, String, Designhttps://leetcode-solutions-5zk.pages.dev/posts/1472-design-browser-history/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1472-design-browser-history/Medium | Array, Linked List, Stack, Design, Doubly-Linked List, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/1476-subrectangle-queries/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1476-subrectangle-queries/Medium | Array, Design, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/1600-throne-inheritance/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1600-throne-inheritance/Medium | Hash Table, Tree, Depth-First Search, Designhttps://leetcode-solutions-5zk.pages.dev/posts/1603-design-parking-system/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1603-design-parking-system/Easy | Design, Simulation, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1622-fancy-sequence/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1622-fancy-sequence/Hard | Math, Design, Segment Tree, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/1656-design-an-ordered-stream/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1656-design-an-ordered-stream/Easy | Array, Hash Table, Design, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/1670-design-front-middle-back-queue/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1670-design-front-middle-back-queue/Medium | Array, Linked List, Design, Queue, Doubly-Linked List, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/1797-design-authentication-manager/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1797-design-authentication-manager/Medium | Hash Table, Linked List, Design, Doubly-Linked Listhttps://leetcode-solutions-5zk.pages.dev/posts/1825-finding-mk-average/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1825-finding-mk-average/Hard | Design, Queue, Heap (Priority Queue), Data Stream, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/1845-seat-reservation-manager/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1845-seat-reservation-manager/Medium | Design, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/1865-finding-pairs-with-a-certain-sum/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1865-finding-pairs-with-a-certain-sum/Medium | Array, Hash Table, Designhttps://leetcode-solutions-5zk.pages.dev/posts/1912-design-movie-rental-system/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1912-design-movie-rental-system/Hard | Array, Hash Table, Design, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/1993-operations-on-tree/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1993-operations-on-tree/Medium | Array, Hash Table, Tree, Depth-First Search, Breadth-First Search, Designhttps://leetcode-solutions-5zk.pages.dev/posts/1032-stream-of-characters/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1032-stream-of-characters/Hard | Array, String, Design, Trie, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/1146-snapshot-array/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1146-snapshot-array/Medium | Array, Hash Table, Binary Search, Designhttps://leetcode-solutions-5zk.pages.dev/posts/1157-online-majority-element-in-subarray/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1157-online-majority-element-in-subarray/Hard | Array, Binary Search, Design, Binary Indexed Tree, Segment Treehttps://leetcode-solutions-5zk.pages.dev/posts/1172-dinner-plate-stacks/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1172-dinner-plate-stacks/Hard | Hash Table, Stack, Design, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/1206-design-skiplist/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1206-design-skiplist/Hard | Linked List, Designhttps://leetcode-solutions-5zk.pages.dev/posts/1261-find-elements-in-a-contaminated-binary-tree/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1261-find-elements-in-a-contaminated-binary-tree/Medium | Hash Table, Tree, Depth-First Search, Breadth-First Search, Design, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0729-my-calendar-i/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0729-my-calendar-i/Medium | Array, Binary Search, Design, Segment Tree, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/0731-my-calendar-ii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0731-my-calendar-ii/Medium | Array, Binary Search, Design, Segment Tree, Prefix Sum, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/0732-my-calendar-iii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0732-my-calendar-iii/Hard | Binary Search, Design, Segment Tree, Prefix Sum, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/0855-exam-room/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0855-exam-room/Medium | Design, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/0895-maximum-frequency-stack/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0895-maximum-frequency-stack/Hard | Hash Table, Stack, Design, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/0900-rle-iterator/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0900-rle-iterator/Medium | Array, Design, Counting, Iteratorhttps://leetcode-solutions-5zk.pages.dev/posts/0901-online-stock-span/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0901-online-stock-span/Medium | Stack, Design, Monotonic Stack, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/0911-online-election/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0911-online-election/Medium | Array, Hash Table, Binary Search, Designhttps://leetcode-solutions-5zk.pages.dev/posts/0919-complete-binary-tree-inserter/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0919-complete-binary-tree-inserter/Medium | Tree, Breadth-First Search, Design, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0933-number-of-recent-calls/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0933-number-of-recent-calls/Easy | Design, Queue, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/0981-time-based-key-value-store/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0981-time-based-key-value-store/Medium | Hash Table, String, Binary Search, Designhttps://leetcode-solutions-5zk.pages.dev/posts/0535-encode-and-decode-tinyurl/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0535-encode-and-decode-tinyurl/Medium | Hash Table, String, Design, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/0622-design-circular-queue/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0622-design-circular-queue/Medium | Array, Linked List, Design, Queuehttps://leetcode-solutions-5zk.pages.dev/posts/0641-design-circular-deque/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0641-design-circular-deque/Medium | Array, Linked List, Design, Queuehttps://leetcode-solutions-5zk.pages.dev/posts/0676-implement-magic-dictionary/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0676-implement-magic-dictionary/Medium | Hash Table, String, Depth-First Search, Design, Triehttps://leetcode-solutions-5zk.pages.dev/posts/0703-kth-largest-element-in-a-stream/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0703-kth-largest-element-in-a-stream/Easy | Tree, Design, Binary Search Tree, Heap (Priority Queue), Binary Tree, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/0705-design-hashset/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0705-design-hashset/Easy | Array, Hash Table, Linked List, Design, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/0706-design-hashmap/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0706-design-hashmap/Easy | Array, Hash Table, Linked List, Design, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/0707-design-linked-list/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0707-design-linked-list/Medium | Linked List, Designhttps://leetcode-solutions-5zk.pages.dev/posts/0715-range-module/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0715-range-module/Hard | Design, Segment Tree, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/0341-flatten-nested-list-iterator/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0341-flatten-nested-list-iterator/Medium | Stack, Tree, Depth-First Search, Design, Queue, Iteratorhttps://leetcode-solutions-5zk.pages.dev/posts/0352-data-stream-as-disjoint-intervals/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0352-data-stream-as-disjoint-intervals/Hard | Hash Table, Binary Search, Union-Find, Design, Data Stream, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/0355-design-twitter/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0355-design-twitter/Medium | Hash Table, Linked List, Design, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/0380-insert-delete-getrandom-o1/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0380-insert-delete-getrandom-o1/Medium | Array, Hash Table, Math, Design, Randomizedhttps://leetcode-solutions-5zk.pages.dev/posts/0381-insert-delete-getrandom-o1-duplicates-allowed/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0381-insert-delete-getrandom-o1-duplicates-allowed/Hard | Array, Hash Table, Math, Design, Randomizedhttps://leetcode-solutions-5zk.pages.dev/posts/0384-shuffle-an-array/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0384-shuffle-an-array/Medium | Array, Math, Design, Randomizedhttps://leetcode-solutions-5zk.pages.dev/posts/0432-all-oone-data-structure/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0432-all-oone-data-structure/Hard | Hash Table, Linked List, Design, Doubly-Linked Listhttps://leetcode-solutions-5zk.pages.dev/posts/0449-serialize-and-deserialize-bst/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0449-serialize-and-deserialize-bst/Medium | String, Tree, Depth-First Search, Breadth-First Search, Design, Binary Search Tree, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0460-lfu-cache/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0460-lfu-cache/Hard | Hash Table, Linked List, Design, Doubly-Linked Listhttps://leetcode-solutions-5zk.pages.dev/posts/0146-lru-cache/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0146-lru-cache/Medium | Hash Table, Linked List, Design, Doubly-Linked Listhttps://leetcode-solutions-5zk.pages.dev/posts/0155-min-stack/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0155-min-stack/Medium | Stack, Designhttps://leetcode-solutions-5zk.pages.dev/posts/0173-binary-search-tree-iterator/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0173-binary-search-tree-iterator/Medium | Stack, Tree, Design, Binary Search Tree, Binary Tree, Iteratorhttps://leetcode-solutions-5zk.pages.dev/posts/0208-implement-trie-prefix-tree/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0208-implement-trie-prefix-tree/Medium | Hash Table, String, Design, Triehttps://leetcode-solutions-5zk.pages.dev/posts/0211-design-add-and-search-words-data-structure/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0211-design-add-and-search-words-data-structure/Medium | String, Depth-First Search, Design, Triehttps://leetcode-solutions-5zk.pages.dev/posts/0225-implement-stack-using-queues/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0225-implement-stack-using-queues/Easy | Stack, Design, Queuehttps://leetcode-solutions-5zk.pages.dev/posts/0232-implement-queue-using-stacks/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0232-implement-queue-using-stacks/Easy | Stack, Design, Queuehttps://leetcode-solutions-5zk.pages.dev/posts/0284-peeking-iterator/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0284-peeking-iterator/Medium | Array, Design, Iteratorhttps://leetcode-solutions-5zk.pages.dev/posts/0295-find-median-from-data-stream/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0295-find-median-from-data-stream/Hard | Two Pointers, Design, Sorting, Heap (Priority Queue), Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/0297-serialize-and-deserialize-binary-tree/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0297-serialize-and-deserialize-binary-tree/Hard | String, Tree, Depth-First Search, Breadth-First Search, Design, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0303-range-sum-query-immutable/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0303-range-sum-query-immutable/Easy | Array, Design, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0304-range-sum-query-2d-immutable/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0304-range-sum-query-2d-immutable/Medium | Array, Design, Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0307-range-sum-query-mutable/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0307-range-sum-query-mutable/Medium | Array, Divide and Conquer, Design, Binary Indexed Tree, Segment Tree