|
|
|
|
| 00001 |
Two Sum |
Hashmap |
Easy |
| 00002 |
Add Two Numbers |
Linked-List |
Medium |
| 00007 |
Reverse Integer |
Math |
Medium |
| 00009 |
Palindrome Number |
String |
Easy |
| 00010 |
Regular Expression Matching |
Dynamic-Programming |
Hard |
| 00011 |
Container With Most Water |
Two-Pointers |
Medium |
| 00014 |
Longest Common Prefix |
String |
Easy |
| 00015 |
3Sum |
Two-Pointers |
Medium |
| 00019 |
Remove Nth Node From End Of List |
Linked-List |
Medium |
| 00020 |
Valid Parentheses |
Stack |
Easy |
| 00021 |
Merge Two Sorted Lists |
Linked-List |
Easy |
| 00026 |
Remove Duplicates From Sorted Array |
Math |
Easy |
| 00027 |
Remove Element |
Two-Pointers |
Easy |
| 00028 |
Find The Index Of The First Occurrence In A String |
String |
Easy |
| 00035 |
Search Insert Position |
Binary-Search |
Easy |
| 00057 |
Insert Interval |
Array |
Medium |
| 00058 |
Length Of Last Word |
String |
Easy |
| 00066 |
Plus One |
Math |
Easy |
| 00069 |
Sqrtx |
Binary-Search |
Easy |
| 00083 |
Remove Duplicates From Sorted List |
Linked-List |
Easy |
| 00094 |
Binary Tree Inorder Traversal |
Tree |
Easy |
| 00098 |
Validate Binary Search Tree |
Tree |
Medium |
| 00100 |
Same Tree |
Tree |
Easy |
| 00125 |
Valid Palindrome |
Two-Pointers |
Easy |
| 00129 |
Sum Root To Leaf Numbers |
Tree |
Medium |
| 00136 |
Single Number |
Bit-Hacks |
Easy |
| 00141 |
Linked List Cycle |
Hashmap |
Easy |
| 00144 |
Binary Tree Preorder Traversal |
Tree |
Easy |
| 00145 |
Binary Tree Postorder Traversal |
Tree |
Easy |
| 00148 |
Sort List |
Linked-List |
Medium |
| 00167 |
Two Sum Ii Input Array Is Sorted |
Two-Pointers |
Medium |
| 00190 |
Reverse Bits |
Bit-Hacks |
Easy |
| 00191 |
Number Of 1 Bits |
Bit-Hacks |
Easy |
| 00193 |
Valid Phone Numbers |
Shell |
Easy |
| 00194 |
Transpose File |
Shell |
Easy |
| 00195 |
Tenth Line |
Shell |
Easy |
| 00202 |
Happy Number |
Hashmap |
Easy |
| 00203 |
Remove Linked List Elements |
Linked-List |
Easy |
| 00206 |
Reverse Linked List |
Linked-List |
Easy |
| 00226 |
Invert Binary Tree |
Tree |
Easy |
| 00231 |
Power Of Two |
Bit-Hacks |
Easy |
| 00237 |
Delete Node In A Linked List |
Linked-List |
Medium |
| 00238 |
Product Of Array Except Self |
Prefix-Sum |
Medium |
| 00242 |
Valid Anagram |
Hashmap |
Easy |
| 00268 |
Missing Number |
Bit-Hacks |
Easy |
| 00338 |
Counting Bits |
Bit-Hacks |
Easy |
| 00342 |
Power Of Four |
Bit-Hacks |
Easy |
| 00344 |
Reverse String |
String |
Easy |
| 00349 |
Intersection Of Two Arrays |
Hashmap |
Easy |
| 00350 |
Intersection Of Two Arrays Ii |
Hashmap |
Easy |
| 00367 |
Valid Perfect Square |
Binary-Search |
Easy |
| 00383 |
Ransom Note |
Hashmap |
Easy |
| 00387 |
First Unique Character In A String |
Hashmap |
Easy |
| 00389 |
Find The Difference |
Bit-Hacks |
Easy |
| 00404 |
Sum Of Left Leaves |
Tree |
Easy |
| 00409 |
Longest Palindrome |
Hashmap |
Easy |
| 00412 |
Fizz Buzz |
Bit-Hacks |
Easy |
| 00448 |
Find All Numbers Disappeared In An Array |
Array |
Easy |
| 00452 |
Minimum Number Of Arrows To Burst Balloons |
Array |
Medium |
| 00461 |
Hamming Distance |
Bit-Hacks |
Easy |
| 00506 |
Relative Ranks |
Priority-Queue |
Easy |
| 00509 |
Fibonacci Number |
Math |
Easy |
| 00525 |
Contiguous Array |
Prefix-Sum |
Medium |
| 00543 |
Diameter Of Binary Tree |
Tree |
Easy |
| 00623 |
Add One Row To Tree |
Tree |
Easy |
| 00704 |
Binary Search |
Binary-Search |
Easy |
| 00709 |
To Lower Case |
Math |
Easy |
| 00771 |
Jewels And Stones |
Priority-Queue |
Easy |
| 00791 |
Custom Sort String |
Hashmap |
Medium |
| 00832 |
Flipping An Image |
Array |
Easy |
| 00876 |
Middle Of The Linked List |
Linked-List |
Easy |
| 00930 |
Binary Subarrays With Sum |
Hashmap |
Medium |
| 00961 |
N Repeated Element In Size 2N Array |
Hashmap |
Easy |
| 00977 |
Squares Of A Sorted Array |
Two-Pointers |
Easy |
| 00979 |
Distribute Coins In Binary Tree |
Tree |
Medium |
| 01002 |
Find Common Characters |
Hashmap |
Easy |
| 01108 |
Defanging An Ip Address |
String |
Easy |
| 01137 |
N Th Tribonacci Number |
Memoization |
Easy |
| 01171 |
Remove Zero Sum Consecutive Nodes From Linked List |
Hashmap |
Medium |
| 01281 |
Subtract The Product And Sum Of Digits Of An Integer |
Math |
Easy |
| 01325 |
Delete Leaves With A Given Value |
Tree |
Medium |
| 01431 |
Kids With The Greatest Number Of Candies |
Array |
Easy |
| 01480 |
Running Sum Of 1D Array |
Array |
Easy |
| 01486 |
Xor Operation In An Array |
Bit-Hacks |
Easy |
| 01544 |
Make The String Great |
Stack |
Easy |
| 01614 |
Maximum Nesting Depth Of The Parentheses |
String |
Easy |
| 01672 |
Richest Customer Wealth |
Matrix |
Easy |
| 01887 |
Reduction Operations To Make The Array Elements Equal |
Math |
Medium |
| 01929 |
Concatenation Of Array |
Array |
Easy |
| 02000 |
Reverse Prefix Of Word |
String |
Easy |
| 02011 |
Final Value Of Variable After Performing Operations |
String |
Easy |
| 02073 |
Time Needed To Buy Tickets |
Array |
Easy |
| 02215 |
Find The Difference Of Two Arrays |
Hashmap |
Easy |
| 02235 |
Add Two Integers |
Math |
Easy |
| 02248 |
Intersection Of Multiple Arrays |
Hashmap |
Easy |
| 02372 |
Largest Local Values In A Matrix |
Array |
Easy |
| 02413 |
Smallest Even Multiple |
Number-Theory |
Easy |
| 02441 |
Largest Positive Integer That Exists With Its Negative |
Hashmap |
Easy |
| 02469 |
Convert The Temperature |
Math |
Easy |
| 02485 |
Find The Pivot Integer |
Math |
Easy |
| 02487 |
Remove Nodes From Linked List |
Linked-List |
Medium |
| 02540 |
Minimum Common Value |
Two-Pointers |
Easy |
| 02620 |
Counter |
Typescript |
Easy |
| 02626 |
Array Reduce Transformation |
Typescript |
Easy |
| 02629 |
Function Composition |
Typescript |
Easy |
| 02634 |
Filter Elements From Array |
Typescript |
Easy |
| 02635 |
Apply Transform Over Each Element In Array |
Typescript |
Easy |
| 02665 |
Counter Ii |
Typescript |
Easy |
| 02667 |
Create Hello World Function |
Typescript |
Easy |
| 02704 |
To Be Or Not To Be |
Typescript |
Easy |
| 02769 |
Find The Maximum Achievable Number |
Math |
Easy |
| 02798 |
Number Of Employees Who Met The Target |
Array |
Easy |
| 02810 |
Faulty Keyboard |
String |
Easy |
| 02816 |
Double A Number Represented As A Linked List |
Linked-List |
Medium |
| 02894 |
Divisible And Non Divisible Sums Difference |
Math |
Easy |
| 02942 |
Find Words Containing Character |
Array |
Easy |
| 03005 |
Count Elements With Maximum Frequency |
Hashmap |
Easy |
| 03099 |
Harshad Number |
Math |
Easy |
| 03110 |
Score Of A String |
Array |
Easy |