| 704 |
Binary Search |
Python |
O(logN) |
O(1) |
Easy |
Array, Binary Search |
|
| 278 |
First Bad Version |
Python Java |
O(logN) |
O(n) |
Easy |
Binary Search |
Time limit exceeds in few solution |
| 35 |
Search Insert Position |
Python Java |
O(n) |
O(1) |
Easy |
Array, Binary Search |
|
| 977 |
Squares of a Sorted Array |
Python Java |
O(n) |
O(1) |
Easy |
Array, Two pointers, Sorting |
|
| 189 |
Rotate Array |
Python Java |
O(n) |
O(n) |
Medium |
Array, Math, Two pointers |
|
| 283 |
Move Zeroes |
Python Java |
O(n) |
O(1) |
Easy |
Array, Two pointers |
|
| 167 |
Two Sum II - Input Array Is Sorted |
Python Java |
O(n) |
O(1) |
Medium |
Array, Two pointers, Binary Search |
|
| 344 |
Reverse String |
Python Java |
O(n) |
O(1) |
Easy |
Two pointers |
|
| 557 |
Reverse Words in a String III |
Python Java |
O(n) |
O(1) |
Easy |
Two pointers, String, Recursion |
|
| 876 |
Middle of the Linked List |
Python Java |
O(n) |
O(n) |
Easy |
Linked List, Two Pointers |
|
| 19 |
Remove Nth Node From End of List |
Python Java |
O(n) |
O(n) |
Medium |
Linked List, Two Pointers |
|
| 3 |
Longest Substring Without Repeating Characters |
Python Java |
O(n) |
O(1) |
Medium |
Hash Table, String, Sliding Window |
|
| 567 |
Permutation in String |
Python Java |
O(n) |
O(1) |
Medium |
Hash Table, Two Pointers, String, Sliding Window |
|
| 733 |
Flood Fill |
Python Java |
O(n)/O(mn) |
O(n) |
Easy |
Array, Depth-First Search |
|
| 695 |
Max Area of Island |
Python Java |
O(R∗C) |
O(R∗C) |
Medium |
Array, Depth-First Search |
|
| 617 |
Merge Two Binary Trees |
Python Java |
O(n) |
O(n) |
Easy |
Tree, Depth-First Search |
|
| 116 |
Populating Next Right Pointers in Each Node |
Python Java |
O(n) |
O(n) |
Medium |
Linked List, Tree |
|
| 542 |
01 Matrix |
Python Java |
O(mn) |
O(1) |
Medium |
Array, Dynamic Programming |
|
| 994 |
Rotting Oranges |
Python Java |
O(mn) |
O(mn) |
Medium |
Array, Breadth-First Search, Matrix |
|
| 21 |
Merge Two Sorted Lists |
Python Java |
O(n) |
O(1) |
Easy |
Linked List, Recursion |
|
| 206 |
Reverse Linked List |
Python Java |
O(n) |
O(1) |
Easy |
Linked List, Recursion |
|
| 77 |
Combinations |
Python Java |
O(2 * K * C(N, K)) |
O(k) |
Medium |
Array, Backtracking |
|
| 46 |
Permutations |
Python Java |
O(n!) |
O(n!) |
Medium |
Array, Backtracking |
|
| 784 |
Letter Case Permutation |
Python Java |
O(2^n) |
O(n) |
Medium |
String, Backtracking |
|
| 70 |
Climbing Stairs |
Python Java |
O(logn)/O(n) |
O(1) |
Easy |
Math, Dynamic Programming |
|
| 198 |
House Robber |
Python Java |
O(n) |
O(1) |
Medium |
Array, Dynamic Programming |
|
| 120 |
Triangle |
Python Java |
O(n^2) |
O(1) |
Medium |
Array, Dynamic Programming |
|
| 231 |
Power of Two |
Python Java |
O(1) |
O(1) |
Easy |
Math, Bit Manipulation, Recursion |
|
| 191 |
Number of 1 Bits |
Python Java |
O(log2n) |
O(1) |
Easy |
Bit Manipulation |
|
| 190 |
Reverse Bits |
Python Java |
O(1) |
O(1) |
Easy |
Divide and Conquer, Bit Manipulation |
|
| 136 |
Single Number |
Python Java |
O(n) |
O(1) |
Easy |
Array, Bit Manipulation |
|