NeverCry's Solutions

Last Update: 8/4/2024, 1:39:04 AM

Solutions

Problem	Difficulty	Tags	Solution
1. Two Sum 🔗	Easy	Array, Hash Table	cpp
11. Container With Most Water 🔗	Medium	Array, Two Pointers, Greedy	cpp
15. 3Sum 🔗	Medium	Array, Two Pointers, Sorting	cpp
39. Combination Sum 🔗	Medium	Array, Backtracking	python3
49. Group Anagrams 🔗	Medium	Array, Hash Table, String, Sorting	cpp | python
70. Climbing Stairs 🔗	Easy	Math, Dynamic Programming, Memoization	python3
74. Search a 2D Matrix 🔗	Medium	Array, Binary Search, Matrix	cpp
78. Subsets 🔗	Medium	Array, Backtracking, Bit Manipulation	python3
79. Word Search 🔗	Medium	Array, String, Backtracking, Matrix	python3
112. Path Sum 🔗	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	python3
121. Best Time to Buy and Sell Stock 🔗	Easy	Array, Dynamic Programming	python3
133. Clone Graph 🔗	Medium	Hash Table, Depth-First Search, Breadth-First Search, Graph	cpp
167. Two Sum II - Input Array Is Sorted 🔗	Medium	Array, Two Pointers, Binary Search	python3
209. Minimum Size Subarray Sum 🔗	Medium	Array, Binary Search, Sliding Window, Prefix Sum	python3
219. Contains Duplicate II 🔗	Easy	Array, Hash Table, Sliding Window	python3
226. Invert Binary Tree 🔗	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	python3
230. Kth Smallest Element in a BST 🔗	Medium	Tree, Depth-First Search, Binary Search Tree, Binary Tree	python3
242. Valid Anagram 🔗	Easy	Hash Table, String, Sorting	python
303. Range Sum Query - Immutable 🔗	Easy	Array, Design, Prefix Sum	python3
332. Reconstruct Itinerary 🔗	Hard	Depth-First Search, Graph, Eulerian Circuit	cpp | java
341. Flatten Nested List Iterator 🔗	Medium	Stack, Tree, Depth-First Search, Design, Queue, Iterator	cpp
344. Reverse String 🔗	Easy	Two Pointers, String	cpp | python3
456. 132 Pattern 🔗	Medium	Array, Binary Search, Stack, Monotonic Stack, Ordered Set	cpp
547. Number of Provinces 🔗	Medium	Depth-First Search, Breadth-First Search, Union Find, Graph	cpp
561. Array Partition 🔗	Easy	Array, Greedy, Sorting, Counting Sort	python3
567. Permutation in String 🔗	Medium	Hash Table, Two Pointers, String, Sliding Window	python3
724. Find Pivot Index 🔗	Easy	Array, Prefix Sum	cpp
739. Daily Temperatures 🔗	Medium	Array, Stack, Monotonic Stack	python3
797. All Paths From Source to Target 🔗	Medium	Backtracking, Depth-First Search, Breadth-First Search, Graph	cpp
853. Car Fleet 🔗	Medium	Array, Stack, Sorting, Monotonic Stack	python3
875. Koko Eating Bananas 🔗	Medium	Array, Binary Search	python3 | python
994. Rotting Oranges 🔗	Medium	Array, Breadth-First Search, Matrix	python3
1343. Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold 🔗	Medium	Array, Sliding Window	python3
1491. Average Salary Excluding the Minimum and Maximum Salary 🔗	Easy	Array, Sorting	cpp
1971. Find if Path Exists in Graph 🔗	Easy	Depth-First Search, Breadth-First Search, Union Find, Graph	cpp