2024 05 17 ~

Algorithm

• Heap
• Merge sort
• Tree (BFS, DFS)
• Graph (BFS, DFS)
• DP (tabulation, memoization)
• Backtracking
• Morris traversal

Data Structure

• List
• LinkedList
• Stack
• �Queue
• Deque
• Heap
• Tree
• Graph
• Trie

�Problem Solving

• Programmers

Problem	Category	Difficulty	Done
N진수 게임	Math, String	Lv.2	✅

• HackerRank
• LeetCode

Problem	Category	Difficulty	Done
0017-letter-combinations-of-a-phone-number	Backtracking	Medium	✅
0649-dota2-senate	Queue	Medium	✅
0933-number-of-recent-calls	Queue	Easy	✅
0215-kth-largest-element-in-an-array	Heap / Priority Queue	Medium	✅
1448-count-good-nodes-in-binary-tree	Tree (DFS)	Medium	✅
0199-binary-tree-right-side-view	Tree (BFS)	Medium	✅
0104-maximum-depth-of-binary-tree	Tree (DFS)	Easy	✅
0872-leaf-similar-trees	Tree (DFS)	Easy	✅
0841-keys-and-rooms	Graph (DFS/BFS)	Medium	✅
1926-nearest-exit-from-entrance-in-maze	Graph (BFS)	Medium	✅
1456-maximum-number-of-vowels-in-a-substr	Sliding Window	Medium	✅
0005-longest-palindromic-substring	DP - On Strings	Medium	✅
0139-word-break	DP - On Strings	Medium	✅
0063-unique-paths-ii	DP - StyleMatrix	Medium	✅
0120-triangle	DP - StyleMatrix	Medium	✅
0064-minimum-path-sum	DP - StyleMatrix	Medium	✅
0221-maximal-square	DP - StyleMatrix	Medium	✅
0931-minimum-falling-path-sum	DP - StyleMatrix	Medium	✅
0062-unique-paths	DP - StyleMatrix	Medium	✅
0740-delete-and-earn	DP - Fibonacci Style	Medium	✅
0198-house-robber	DP - Fibonacci Style	Medium	✅
0746-min-cost-climbing-stairs	DP - Fibonacci Style	Easy	✅
0509-fibonacci-number	DP - Fibonacci Style	Easy	✅
1137-n-th-tribonacci-number	DP - Fibonacci Style	Easy	✅
0027-remove-element	Two Pointers	Easy	✅
0088-merge-sorted-array	Two Pointers	Easy	✅
0208-implement-trie-prefix-tree	Trie	Medium	✅