Problems · Lyte Code

Curated lists

Topics

Array Backtracking Biconnected Component Binary Indexed Tree Binary Search Binary Search Tree Binary Tree Bit Manipulation Bitmask Brainteaser Breadth-First Search Bucket Sort Combinatorics Concurrency Counting Counting Sort Data Stream Database Depth-First Search Design Divide and Conquer Doubly-Linked List Dynamic Programming Enumeration Eulerian Circuit Game Theory Geometry Graph Greedy Hash Function Hash Table Heap (Priority Queue) Interactive Iterator Line Sweep Linked List Math Matrix Memoization Merge Sort Minimum Spanning Tree Monotonic Queue Monotonic Stack Number Theory Ordered Set Prefix Sum Probability and Statistics Queue Quickselect Radix Sort Randomized Recursion Rejection Sampling Reservoir Sampling Rolling Hash Segment Tree Shell Shortest Path Simulation Sliding Window Sorting Stack String String Matching Strongly Connected Component Suffix Array Topological Sort Tree Trie Two Pointers Union Find

All problems

2837 total

2837 problems

#	Title	Status	Difficulty	Topics	Accept
1	Two Sum	—	Easy	ArrayHash Table	56%
2	Add Two Numbersread	—	Medium	Linked ListMathRecursion	46%
3	Longest Substring Without Repeating Characters	—	Medium	Hash TableStringSliding Window	37%
4	Median of Two Sorted Arrays	—	Hard	ArrayBinary SearchDivide and Conquer	44%
5	Longest Palindromic Substring	—	Medium	Two PointersStringDynamic Programming	36%
6	Zigzag Conversion	—	Medium	String	51%
7	Reverse Integer	—	Medium	Math	30%
8	String to Integer (atoi)	—	Medium	String	19%
9	Palindrome Number	—	Easy	Math	59%
10	Regular Expression Matching	—	Hard	StringDynamic ProgrammingRecursion	29%
11	Container With Most Water	—	Medium	ArrayTwo PointersGreedy	58%
12	Integer to Roman	—	Medium	Hash TableMathString	68%
13	Roman to Integerread	—	Easy	Hash TableMathString	65%
14	Longest Common Prefix	—	Easy	StringTrie	45%
15	3Sum	—	Medium	ArrayTwo PointersSorting	37%
16	3Sum Closest	—	Medium	ArrayTwo PointersSorting	47%
17	Letter Combinations of a Phone Number	—	Medium	Hash TableStringBacktracking	64%
18	4Sum	—	Medium	ArrayTwo PointersSorting	38%
19	Remove Nth Node From End of List	—	Medium	Linked ListTwo Pointers	49%
20	Valid Parentheses	—	Easy	StringStack	42%
21	Merge Two Sorted Lists	—	Easy	Linked ListRecursion	67%
22	Generate Parenthesesread	—	Medium	StringDynamic ProgrammingBacktracking	77%
23	Merge k Sorted Lists	—	Hard	Linked ListDivide and ConquerHeap (Priority Queue)	56%
24	Swap Nodes in Pairs	—	Medium	Linked ListRecursion	67%
25	Reverse Nodes in k-Group	—	Hard	Linked ListRecursion	63%
26	Remove Duplicates from Sorted Array	—	Easy	ArrayTwo Pointers	60%
27	Remove Element	—	Easy	ArrayTwo Pointers	60%
28	Find the Index of the First Occurrence in a String	—	Easy	Two PointersStringString Matching	45%
29	Divide Two Integersread	—	Medium	MathBit Manipulation	18%
30	Substring with Concatenation of All Words	—	Hard	Hash TableStringSliding Window	33%
31	Next Permutation	—	Medium	ArrayTwo Pointers	43%
32	Longest Valid Parentheses	—	Hard	StringDynamic ProgrammingStack	36%
33	Search in Rotated Sorted Array	—	Medium	ArrayBinary Search	43%
34	Find First and Last Position of Element in Sorted Arrayread	—	Medium	ArrayBinary Search	47%
35	Search Insert Position	—	Easy	ArrayBinary Search	49%
36	Valid Sudoku	—	Medium	ArrayHash TableMatrix	62%
37	Sudoku Solverread	—	Hard	ArrayHash TableBacktracking	64%
38	Count and Say	—	Medium	String	60%
39	Combination Sumread	—	Medium	ArrayBacktracking	74%
40	Combination Sum II	—	Medium	ArrayBacktracking	58%
41	First Missing Positive	—	Hard	ArrayHash Table	41%
42	Trapping Rain Water	—	Hard	ArrayTwo PointersDynamic Programming	65%
43	Multiply Stringsread	—	Medium	MathStringSimulation	42%
44	Wildcard Matching	—	Hard	StringDynamic ProgrammingGreedy	30%
45	Jump Game II	—	Medium	ArrayDynamic ProgrammingGreedy	41%
46	Permutations	—	Medium	ArrayBacktracking	81%
47	Permutations II	—	Medium	ArrayBacktrackingSorting	61%
48	Rotate Image	—	Medium	ArrayMathMatrix	78%
49	Group Anagrams	—	Medium	ArrayHash TableString	71%
50	Pow(x, n)	—	Medium	MathRecursion	37%

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