| 2024-11-18 |
215 |
Kth Largest Element in an Array |
Medium |
Python |
Heap |
| 2024-10-14 |
55 |
Jump Game |
Medium |
Python |
|
| 2024-01-30 |
2154 |
Keep Multiplying Found Values by Two |
Easy |
Python |
Set |
| 2024-01-11 |
121 |
Best Time to Buy and Sell Stock |
Easy |
Python |
Sliding window |
| 2024-01-08 |
704 |
Binary Search |
Easy |
Python |
Binary search |
| 2024-01-08 |
141 |
Linked List Cycle |
Easy |
Python |
Linked list |
| 2023-10-04 |
150 |
Evaluate Reverse Polish Notation |
Medium |
Python |
Recursion, Stack |
| 2023-10-04 |
155 |
Min Stack |
Medium |
Python |
Stack |
| 2023-08-30 |
1941 |
Check if All Characters Have Equal Number of Occurrences |
Easy |
Python |
Sorting |
| 2023-08-29 |
739 |
Daily Temperatures |
Medium |
Python |
Stack |
| 2023-08-27 |
2131 |
Longest Palindrome by Concatenating Two Letter Words |
Medium |
Python |
Hash map |
| 2023-08-23 |
1451 |
Rearrange Words in a Sentence |
Medium |
Python |
Hash map, Sorting |
| 2023-08-21 |
917 |
Reverse Only Letters |
Easy |
Python |
|
| 2023-08-21 |
884 |
Uncommon Words from Two Sentences |
Easy |
Python |
Hash map, List comprehension |
| 2023-08-18 |
2342 |
Max Sum of a Pair With Equal Sum of Digits |
Medium |
Python |
Hash map |
| 2023-08-17 |
278 |
First Bad Version |
Easy |
Python |
|
| 2023-08-17 |
509 |
Fibonacci Number |
Easy |
Python |
|
| 2023-08-17 |
696 |
Count Binary Substrings |
Easy |
Python |
|
| 2023-08-16 |
599 |
Minimum Index Sum of Two Lists |
Easy |
Python |
Hash map |
| 2023-08-16 |
598 |
Range Addition II |
Easy |
Python |
|
| 2023-08-16 |
338 |
Counting Bits |
Easy |
Python |
List comprehension |
| 2023-08-14 |
128 |
Longest Consecutive Sequence |
Medium |
Python |
Hash map |
| 2023-08-14 |
36 |
Valid Sudoku |
Medium |
Python |
Matrix, Hash map |
| 2023-08-14 |
238 |
Product of Array Except Self |
Medium |
Python |
Prefix sum |
| 2023-08-14 |
347 |
Top K Frequent Elements |
Medium |
Python |
Priority queue, Hash map |
| 2023-08-14 |
49 |
Group Anagrams |
Medium |
Python |
Hash map |
| 2023-08-14 |
242 |
Valid Anagram |
Easy |
Python |
Hash map |
| 2023-08-14 |
217 |
Contains Duplicate |
Easy |
Python |
Hash map |
| 2023-08-13 |
1854 |
Maximum Population Year |
Easy |
Python |
|
| 2023-08-12 |
1952 |
Three Divisors |
Easy |
Python |
|
| 2023-08-12 |
2119 |
A Number After a Double Reversal |
Easy |
Python |
|
| 2023-08-08 |
2086 |
Minimum Number of Food Buckets to Feed the Hamsters |
Medium |
Python |
|
| 2023-08-08 |
2260 |
Minimum Consecutive Cards to Pick Up |
Medium |
Python |
Hash map |
| 2023-08-08 |
22 |
Generate Parentheses |
Medium |
Python |
Dynamic programming |
| 2023-08-07 |
74 |
Search a 2D Matrix |
Medium |
Python |
|
| 2023-08-07 |
434 |
Number of Segments in a String |
Easy |
Python |
|
| 2023-08-07 |
693 |
Binary Number with Alternating Bits |
Easy |
Python |
|
| 2023-08-07 |
709 |
To Lower Case |
Easy |
Python |
|
| 2023-08-07 |
1700 |
Number of Students Unable to Eat Lunch |
Easy |
Python |
|
| 2023-07-13 |
207 |
Course Schedule |
Medium |
Python |
DFS |
| 2023-07-06 |
451 |
Sort Characters By Frequency |
Medium |
C++ |
Priority queue |
| 2023-07-06 |
2231 |
Largest Number After Digit Swaps by Parity |
Easy |
C++ |
Priority queue |
| 2023-07-05 |
1493 |
Longest Subarray of 1's After Deleting One Element |
Medium |
Python |
Sliding window |
| 2023-07-04 |
1020 |
Number of Enclaves |
Medium |
Python |
Flood fill |
| 2023-07-04 |
419 |
Battleships in a Board |
Medium |
Python |
Flood fill |
| 2023-07-04 |
12 |
Integer to Roman |
Medium |
Python |
|
| 2023-07-04 |
137 |
Single Number II |
Medium |
Python |
|
| 2023-06-22 |
30 |
Substring with Concatenation of All Words |
Hard |
Python |
Sliding window |
| 2023-06-22 |
187 |
Repeated DNA Sequences |
Medium |
Python |
Sliding window |
| 2023-06-22 |
1004 |
Max Consecutive Ones III |
Medium |
Python |
Sliding window |
| 2023-06-22 |
2269 |
Find the K-Beauty of a Number |
Easy |
Python |
Sliding window |
| 2023-06-22 |
1876 |
Substrings of Size Three with Distinct Characters |
Easy |
Python |
Sliding window |
| 2023-06-15 |
1161 |
Maximum Level Sum of a Binary Tree |
Medium |
Python |
DFS |
| 2023-06-14 |
530 |
Minimum Absolute Difference in BST |
Easy |
Python |
BST, DFS |
| 2023-06-13 |
701 |
Insert into a Binary Search Tree |
Medium |
Python |
BST |
| 2023-06-13 |
2352 |
Equal Row and Column Pairs |
Medium |
Python |
Hash map |
| 2023-06-07 |
1318 |
Minimum Flips to Make a OR b Equal to c |
Medium |
Python |
|
| 2023-01-08 |
344 |
Reverse String |
Easy |
Python |
|
| 2023-01-07 |
1995 |
Count Special Quadruplets |
Easy |
Python(Naive) |
|
| 2023-01-06 |
1743 |
Restore the Array From Adjacent Pairs |
Medium |
Unsolved |
|
| 2023-01-06 |
205 |
Isomorphic Strings |
Easy |
Python |
|
| 2023-01-05 |
322 |
Coin Change |
Medium |
Unsolved |
|
| 2023-01-05 |
43 |
Multiply String |
Medium |
Python |
|
| 2023-01-05 |
125 |
Valid Palindrome |
Easy |
Python |
|
| 2022-10-21 |
1281 |
Subtract the Product and Sum of Digits of an Integer |
Easy |
C++ |
|
| 2022-10-20 |
1929 |
Concatenation of Array |
Easy |
C++ |
|
| 2022-10-19 |
1920 |
Build Array from Permutation |
Easy |
C++ |
|
| 2022-10-18 |
1741 |
Find Total Time Spent by Each Employee |
Easy |
SQL |
|
| 2022-10-17 |
1757 |
Recyclable and Low Fat Products |
Easy |
SQL |
|
| 2022-10-16 |
1379 |
Find a Corresponding Node of a Binary Tree in a Clone of That Tree |
Easy |
C++ |
|
| 2022-10-15 |
1365 |
How Many Numbers Are Smaller Than the Current Number |
Easy |
C++ |
|
| 2022-10-14 |
1486 |
XOR Operation in an Array |
Easy |
C++ |
|
| 2022-10-13 |
2367 |
Number of Arithmetic Triples |
Easy |
C++ |
|
| 2022-10-12 |
1603 |
Design Parking System |
Easy |
C++ |
|
| 2022-10-11 |
771 |
Jewels and Stones |
Easy |
C++ |
|
| 2022-10-10 |
2160 |
Minimum Sum of Four Digit Number After Splitting Digits |
Easy |
Python |
|
| 2022-10-09 |
1859 |
Sorting the Sentence |
Easy |
Python |
|
| 2022-10-08 |
2062 |
Count Vowel Substrings of a String |
Easy |
Unsolved |
|
| 2022-10-07 |
1534 |
Count Good Triplets |
Easy |
C++ |
|
| 2022-10-06 |
1684 |
Count the Number of Consistent Strings |
Easy |
C++ |
|
| 2022-10-05 |
938 |
Range Sum of BST |
Easy |
C++ |
|
| 2022-10-04 |
1773 |
Count Items Matching a Rule |
Easy |
C++ |
|
| 2022-10-03 |
1431 |
Kids With the Greatest Number of Candies |
Easy |
C++ |
|
| 2022-10-02 |
2236 |
Root Equals Sum of Children |
Easy |
C++ |
|
| 2022-10-01 |
1512 |
Number of Good Pairs |
Easy |
C++ |
|
| 2022-09-30 |
1108 |
Defanging an IP Address |
Easy |
C++ |
|
| 2022-09-29 |
2181 |
Merge Nodes in Between Zeros |
Medium |
C++ |
|
| 2022-09-28 |
1528 |
Shuffle String |
Easy |
C++ |
|
| 2022-09-27 |
2011 |
Final Value of Variable After Performing Operations |
Easy |
C++ |
|
| 2022-09-26 |
2114 |
Maximum Number of Words Found in Sentences |
Easy |
Python |
|
| 2022-09-25 |
2413 |
Smallest Even Multiple |
Easy |
C++ |
|
| 2022-09-24 |
6 |
Zigzag Conversion |
Medium |
C++ |
|
| 2022-09-23 |
1480 |
Running Sum of 1d Array |
Easy |
C++ Haskell |
|
| 2022-09-22 |
2235 |
Add Two Integers |
Easy |
C++ |
|
| 2022-09-21 |
1470 |
Shuffle the Array |
Easy |
C++ |
|
| 2022-09-20 |
70 |
Climbing Stairs |
Easy |
C++ |
|
| 2022-09-19 |
14 |
Longest Common Prefix |
Easy |
C++(Naive) |
|
| 2022-09-18 |
21 |
Merge Two Sorted Lists |
Easy |
C(Naive) |
|
| 2022-09-17 |
58 |
Length of Last Word |
Easy |
Python |
|
| 2022-09-16 |
1770 |
Maximum Score from Performing Multiplication Operations |
Medium |
Unsolved |
|
| 2022-09-15 |
2007 |
Find Original Array From Doubled Array |
Medium |
C++(Naive) C++(Example Solution) |
|
| 2022-09-14 |
1457 |
Pseudo-Palindrommic Paths in a Binary Tree |
Medium |
C |
DFS |
| 2022-09-13 |
393 |
UTF-8 Validation |
Medium |
C |
|
| 2022-09-12 |
948 |
Bag of Tokens |
Medium |
Python(Naive) |
|
| 2022-09-11 |
1221 |
Split a String in Balanced Strings |
Easy |
C Haskell |
|
| 2022-09-10 |
20 |
Valid Parentheses |
Easy |
Python |
Stack |
| 2022-09-09 |
2325 |
Decode the Message |
Easy |
Python |
|
| 2022-09-08 |
807 |
Max Increase to Keep City Skyline |
Medium |
C(Naive) |
|
| 2022-09-07 |
50 |
Pow(x,n) |
Medium |
C |
|
| 2022-09-07 |
206 |
Reverse Linked List |
Easy |
C |
|
| 2022-09-06 |
5 |
Longest Palindromic Substring |
Medium |
C(Naive) |
|
| 2022-09-06 |
4 |
Median of Two Sorted Arrays |
Hard |
C(Naive) |
|
| 2022-09-05 |
3 |
Longest Substring Without Repeating Characters |
Medium |
C(Naive) C(Better) Python |
Sliding window |
| 2022-09-04 |
66 |
Plus One |
Easy |
Python Haskell |
|
| 2022-09-03 |
9 |
Palindrome Number |
Easy |
Python Haskell |
|
| 2022-09-02 |
1 |
Two Sum |
Easy |
Python(Naive) Python(Better) |
|
| 2022-09-01 |
1337 |
The K Weakest Rows in a Matrix |
Easy |
Python |
|
| 2022-09-01 |
1342 |
Number of Steps to Reduce a Number to Zero |
Easy |
C Haskell |
|
| 2022-08-31 |
2 |
Add Two Numbers |
Medium |
C |
|
| 2022-08-30 |
1672 |
Richest Customer Wealth |
Easy |
Python Haskell |
|
| 2022-08-29 |
876 |
Middle of the Linked list |
Easy |
C |
|
| 2022-08-28 |
234 |
Palindrome Linked List |
Easy |
C |
|
| 2022-08-28 |
383 |
Ransom Note |
Easy |
C |
|
| 2022-08-27 |
412 |
Fizz Buzz |
Easy |
Python |
|
| 2022-08-26 |
13 |
Roman to Integer |
Easy |
Python |
|