| 1 |
Two Sum |
Easy |
Problem, Solution |
| 2 |
Add Two Numbers |
Medium |
Problem, Solution |
| 7 |
Reverse Integer |
Easy |
Problem, Solution |
| 9 |
Palindrome Number |
Easy |
Problem, Solution |
| 13 |
Roman to Integer |
Easy |
Problem, Solution |
| 14 |
Longest Common Prefix |
Easy |
Problem, Solution |
| 20 |
Valid Parentheses |
Easy |
Problem, Solution |
| 21 |
Merge Two Sorted Lists |
Easy |
Problem, Solution |
| 26 |
Remove Duplicates from Sorted Array |
Easy |
Problem, Solution |
| 27 |
Remove Element |
Easy |
Problem, Solution |
| 28 |
Implement strStr() |
Easy |
Problem, Solution |
| 35 |
Search Insert Position |
Easy |
Problem, Solution |
| 53 |
Maximum Subarray |
Easy |
Problem, Solution |
| 58 |
Length of Last Word |
Easy |
Problem, Solution |
| 66 |
Plus One |
Easy |
Problem, Solution |
| 67 |
Add Binary |
Easy |
Problem, Solution |
| 69 |
Sqrt(x) |
Easy |
Problem, Solution |
| 70 |
Climbing Stairs |
Easy |
Problem, Solution |
| 83 |
Remove Duplicates from Sorted List |
Easy |
Problem, Solution |
| 88 |
Merge Sorted Array |
Easy |
Problem, Solution |
| 94 |
Binary Tree Inorder Traversal |
Easy |
Problem, Solution |
| 100 |
Same Tree |
Easy |
Problem, Solution |
| 101 |
Symmetric Tree |
Easy |
Problem, Solution |
| 104 |
Maximum Depth of Binary Tree |
Easy |
Problem, Solution |
| 108 |
Convert Sorted Array to Binary Search Tree |
Easy |
Problem, Solution |
| 110 |
Balanced Binary Tree |
Easy |
Problem, Solution |
| 111 |
Minimum Depth of Binary Tree |
Easy |
Problem, Solution |
| 112 |
Path Sum |
Easy |
Problem, Solution |
| 118 |
Pascal's Triangle |
Easy |
Problem, Solution |
| 119 |
Pascal's Triangle II |
Easy |
Problem, Solution |
| 121 |
Best Time to Buy and Sell Stock |
Easy |
Problem, Solution |
| 122 |
Best Time to Buy and Sell Stock II |
Easy |
Problem, Solution |
| 125 |
Valid Palindrome |
Easy |
Problem, Solution |
| 136 |
Single Number |
Easy |
Problem, Solution |
| 141 |
Linked List Cycle |
Easy |
Problem, Solution |
| 144 |
Binary Tree Preorder Traversal |
Easy |
Problem, Solution |
| 145 |
Binary Tree Postorder Traversal |
Easy |
Problem, Solution |
| 155 |
Min Stack |
Easy |
Problem, Solution |
| 160 |
Intersection of Two Linked Lists |
Easy |
Problem, Solution |
| 167 |
Two Sum II - Input array is sorted |
Easy |
Problem, Solution |
| 168 |
Excel Sheet Column Title |
Easy |
Problem, Solution |
| 169 |
Majority Element |
Easy |
Problem, Solution |
| 171 |
Excel Sheet Column Number |
Easy |
Problem, Solution |
| 172 |
Factorial Trailing Zeroes |
Easy |
Problem, Solution |
| 190 |
Reverse Bits |
Easy |
Problem, Solution |
| 191 |
Number of 1 Bits |
Easy |
Problem, Solution |
| 202 |
Happy Number |
Easy |
Problem, Solution |
| 203 |
Remove Linked List Elements |
Easy |
Problem, Solution |
| 204 |
Count Primes |
Easy |
Problem, Solution |
| 205 |
Isomorphic Strings |
Easy |
Problem, Solution |
| 206 |
Reverse Linked List |
Easy |
Problem, Solution |
| 217 |
Contains Duplicate |
Easy |
Problem, Solution |
| 219 |
Contains Duplicate II |
Easy |
Problem, Solution |
| 222 |
Count Complete Tree Nodes |
Easy |
Problem, Solution |
| 225 |
Implement Stack using Queues |
Easy |
Problem, Solution |
| 226 |
Invert Binary Tree |
Easy |
Problem, Solution |
| 228 |
Summary Ranges |
Easy |
Problem, Solution |
| 231 |
Power of Two |
Easy |
Problem, Solution |
| 232 |
Implement Queue using Stacks |
Easy |
Problem, Solution |
| 234 |
Palindrome Linked List |
Easy |
Problem, Solution |
| 235 |
Lowest Common Ancestor of a Binary Search Tree |
Easy |
Problem, Solution |
| 237 |
Delete Node in a Linked List |
Easy |
Problem, Solution |
| 242 |
Valid Anagram |
Easy |
Problem, Solution |
| 257 |
Binary Tree Paths |
Easy |
Problem, Solution |
| 258 |
Add Digits |
Easy |
Problem, Solution |
| 263 |
Ugly Number |
Easy |
Problem, Solution |
| 268 |
Missing Number |
Easy |
Problem, Solution |
| 278 |
First Bad Version |
Easy |
Problem, Solution |
| 283 |
Move Zeroes |
Easy |
Problem, Solution |
| 290 |
Word Pattern |
Easy |
Problem, Solution |
| 292 |
Nim Game |
Easy |
Problem, Solution |
| 303 |
Range Sum Query - Immutable |
Easy |
Problem, Solution |
| 326 |
Power of Three |
Easy |
Problem, Solution |
| 338 |
Counting Bits |
Easy |
Problem, Solution |
| 342 |
Power of Four |
Easy |
Problem, Solution |
| 344 |
Reverse String |
Easy |
Problem, Solution |
| 345 |
Reverse Vowels of a String |
Easy |
Problem, Solution |
| 349 |
Intersection of Two Arrays |
Easy |
Problem, Solution |
| 350 |
Intersection of Two Arrays II |
Easy |
Problem, Solution |
| 367 |
Valid Perfect Square |
Easy |
Problem, Solution |
| 374 |
Guess Number Higher or Lower |
Easy |
Problem, Solution |
| 383 |
Ransom Note |
Easy |
Problem, Solution |
| 387 |
First Unique Character in a String |
Easy |
Problem, Solution |
| 389 |
Find the Difference |
Easy |
Problem, Solution |
| 392 |
Is Subsequence |
Easy |
Problem, Solution |
| 401 |
Binary Watch |
Easy |
Problem, Solution |
| 404 |
Sum of Left Leaves |
Easy |
Problem, Solution |
| 405 |
Convert a Number to Hexadecimal |
Easy |
Problem, Solution |
| 409 |
Longest Palindrome |
Easy |
Problem, Solution |
| 412 |
Fizz Buzz |
Easy |
Problem, Solution |
| 414 |
Third Maximum Number |
Easy |
Problem, Solution |
| 415 |
Add Strings |
Easy |
Problem, Solution |
| 434 |
Number of Segments in a String |
Easy |
Problem, Solution |
| 441 |
Arranging Coins |
Easy |
Problem, Solution |
| 448 |
Find All Numbers Disappeared in an Array |
Easy |
Problem, Solution |
| 453 |
Minimum Moves to Equal Array Elements |
Easy |
Problem, Solution |
| 455 |
Assign Cookies |
Easy |
Problem, Solution |
| 459 |
Repeated Substring Pattern |
Easy |
Problem, Solution |
| 461 |
Hamming Distance |
Easy |
Problem, Solution |
| 463 |
Island Perimeter |
Easy |
Problem, Solution |
| 476 |
Number Complement |
Easy |
Problem, Solution |
| 482 |
License Key Formatting |
Easy |
Problem, Solution |
| 485 |
Max Consecutive Ones |
Easy |
Problem, Solution |
| 492 |
Construct the Rectangle |
Easy |
Problem, Solution |
| 495 |
Teemo Attacking |
Easy |
Problem, Solution |
| 496 |
Next Greater Element I |
Easy |
Problem, Solution |
| 500 |
Keyboard Row |
Easy |
Problem, Solution |
| 501 |
Find Mode in Binary Search Tree |
Easy |
Problem, Solution |
| 504 |
Base 7 |
Easy |
Problem, Solution |
| 506 |
Relative Ranks |
Easy |
Problem, Solution |
| 507 |
Perfect Number |
Easy |
Problem, Solution |
| 509 |
Fibonacci Number |
Easy |
Problem, Solution |
| 520 |
Detect Capital |
Easy |
Problem, Solution |
| 521 |
Longest Uncommon Subsequence I |
Easy |
Problem, Solution |
| 530 |
Minimum Absolute Difference in BST |
Easy |
Problem, Solution |
| 541 |
Reverse String II |
Easy |
Problem, Solution |
| 543 |
Diameter of Binary Tree |
Easy |
Problem, Solution |
| 551 |
Student Attendance Record I |
Easy |
Problem, Solution |
| 557 |
Reverse Words in a String III |
Easy |
Problem, Solution |
| 559 |
Maximum Depth of N-ary Tree |
Easy |
Problem, Solution |
| 561 |
Array Partition I |
Easy |
Problem, Solution |
| 563 |
Binary Tree Tilt |
Easy |
Problem, Solution |
| 566 |
Reshape the Matrix |
Easy |
Problem, Solution |
| 572 |
Subtree of Another Tree |
Easy |
Problem, Solution |
| 575 |
Distribute Candies |
Easy |
Problem, Solution |
| 589 |
N-ary Tree Preorder Traversal |
Easy |
Problem, Solution |
| 590 |
N-ary Tree Postorder Traversal |
Easy |
Problem, Solution |
| 594 |
Longest Harmonious Subsequence |
Easy |
Problem, Solution |
| 598 |
Range Addition II |
Easy |
Problem, Solution |
| 599 |
Minimum Index Sum of Two Lists |
Easy |
Problem, Solution |
| 605 |
Can Place Flowers |
Easy |
Problem, Solution |
| 606 |
Construct String from Binary Tree |
Easy |
Problem, Solution |
| 617 |
Merge Two Binary Trees |
Easy |
Problem, Solution |
| 628 |
Maximum Product of Three Numbers |
Easy |
Problem, Solution |
| 637 |
Average of Levels in Binary Tree |
Easy |
Problem, Solution |
| 643 |
Maximum Average Subarray I |
Easy |
Problem, Solution |
| 645 |
Set Mismatch |
Easy |
Problem, Solution |
| 653 |
Two Sum IV - Input is a BST |
Easy |
Problem, Solution |
| 657 |
Robot Return to Origin |
Easy |
Problem, Solution |
| 661 |
Image Smoother |
Easy |
Problem, Solution |
| 671 |
Second Minimum Node In a Binary Tree |
Easy |
Problem, Solution |
| 674 |
Longest Continuous Increasing Subsequence |
Easy |
Problem, Solution |
| 680 |
Valid Palindrome II |
Easy |
Problem, Solution |
| 682 |
Baseball Game |
Easy |
Problem, Solution |
| 693 |
Binary Number with Alternating Bits |
Easy |
Problem, Solution |
| 696 |
Count Binary Substrings |
Easy |
Problem, Solution |
| 697 |
Degree of an Array |
Easy |
Problem, Solution |
| 700 |
Search in a Binary Search Tree |
Easy |
Problem, Solution |
| 703 |
Kth Largest Element in a Stream |
Easy |
Problem, Solution |
| 704 |
Binary Search |
Easy |
Problem, Solution |
| 705 |
Design HashSet |
Easy |
Problem, Solution |
| 706 |
Design HashMap |
Easy |
Problem, Solution |
| 709 |
To Lower Case |
Easy |
Problem, Solution |
| 717 |
1-bit and 2-bit Characters |
Easy |
Problem, Solution |
| 724 |
Find Pivot Index |
Easy |
Problem, Solution |
| 728 |
Self Dividing Numbers |
Easy |
Problem, Solution |
| 733 |
Flood Fill |
Easy |
Problem, Solution |
| 744 |
Find Smallest Letter Greater Than Target |
Easy |
Problem, Solution |
| 746 |
Min Cost Climbing Stairs |
Easy |
Problem, Solution |
| 747 |
Largest Number At Least Twice of Others |
Easy |
Problem, Solution |
| 748 |
Shortest Completing Word |
Easy |
Problem, Solution |
| 762 |
Prime Number of Set Bits in Binary Representation |
Easy |
Problem, Solution |
| 766 |
Toeplitz Matrix |
Easy |
Problem, Solution |
| 771 |
Jewels and Stones |
Easy |
Problem, Solution |
| 783 |
Minimum Distance Between BST Nodes |
Easy |
Problem, Solution |
| 796 |
Rotate String |
Easy |
Problem, Solution |
| 804 |
Unique Morse Code Words |
Easy |
Problem, Solution |
| 806 |
Number of Lines To Write String |
Easy |
Problem, Solution |
| 812 |
Largest Triangle Area |
Easy |
Problem, Solution |
| 819 |
Most Common Word |
Easy |
Problem, Solution |
| 821 |
Shortest Distance to a Character |
Easy |
Problem, Solution |
| 824 |
Goat Latin |
Easy |
Problem, Solution |
| 830 |
Positions of Large Groups |
Easy |
Problem, Solution |
| 832 |
Flipping an Image |
Easy |
Problem, Solution |
| 836 |
Rectangle Overlap |
Easy |
Problem, Solution |
| 844 |
Backspace String Compare |
Easy |
Problem, Solution |
| 852 |
Peak Index in a Mountain Array |
Easy |
Problem, Solution |
| 859 |
Buddy Strings |
Easy |
Problem, Solution |
| 860 |
Lemonade Change |
Easy |
Problem, Solution |
| 867 |
Transpose Matrix |
Easy |
Problem, Solution |
| 868 |
Binary Gap |
Easy |
Problem, Solution |
| 872 |
Leaf-Similar Trees |
Easy |
Problem, Solution |
| 876 |
Middle of the Linked List |
Easy |
Problem, Solution |
| 883 |
Projection Area of 3D Shapes |
Easy |
Problem, Solution |
| 884 |
Uncommon Words from Two Sentences |
Easy |
Problem, Solution |
| 888 |
Fair Candy Swap |
Easy |
Problem, Solution |
| 892 |
Surface Area of 3D Shapes |
Easy |
Problem, Solution |
| 896 |
Monotonic Array |
Easy |
Problem, Solution |
| 897 |
Increasing Order Search Tree |
Easy |
Problem, Solution |
| 905 |
Sort Array By Parity |
Easy |
Problem, Solution |
| 908 |
Smallest Range I |
Easy |
Problem, Solution |
| 914 |
X of a Kind in a Deck of Cards |
Easy |
Problem, Solution |
| 917 |
Reverse Only Letters |
Easy |
Problem, Solution |
| 922 |
Sort Array By Parity II |
Easy |
Problem, Solution |
| 925 |
Long Pressed Name |
Easy |
Problem, Solution |
| 929 |
Unique Email Addresses |
Easy |
Problem, Solution |
| 933 |
Number of Recent Calls |
Easy |
Problem, Solution |
| 937 |
Reorder Data in Log Files |
Easy |
Problem, Solution |
| 938 |
Range Sum of BST |
Easy |
Problem, Solution |
| 941 |
Valid Mountain Array |
Easy |
Problem, Solution |
| 942 |
DI String Match |
Easy |
Problem, Solution |
| 944 |
Delete Columns to Make Sorted |
Easy |
Problem, Solution |
| 953 |
Verifying an Alien Dictionary |
Easy |
Problem, Solution |
| 961 |
N-Repeated Element in Size 2N Array |
Easy |
Problem, Solution |
| 965 |
Univalued Binary Tree |
Easy |
Problem, Solution |
| 976 |
Largest Perimeter Triangle |
Easy |
Problem, Solution |
| 977 |
Squares of a Sorted Array |
Easy |
Problem, Solution |
| 989 |
Add to Array-Form of Integer |
Easy |
Problem, Solution |
| 993 |
Cousins in Binary Tree |
Easy |
Problem, Solution |
| 997 |
Find the Town Judge |
Easy |
Problem, Solution |
| 999 |
Available Captures for Rook |
Easy |
Problem, Solution |
| 1002 |
Find Common Characters |
Easy |
Problem, Solution |
| 1005 |
Maximize Sum Of Array After K Negations |
Easy |
Problem, Solution |
| 1009 |
Complement of Base 10 Integer |
Easy |
Problem, Solution |
| 1013 |
Partition Array Into Three Parts With Equal Sum |
Easy |
Problem, Solution |
| 1018 |
Binary Prefix Divisible By 5 |
Easy |
Problem, Solution |
| 1021 |
Remove Outermost Parentheses |
Easy |
Problem, Solution |
| 1022 |
Sum of Root To Leaf Binary Numbers |
Easy |
Problem, Solution |
| 1025 |
Divisor Game |
Easy |
Problem, Solution |
| 1030 |
Matrix Cells in Distance Order |
Easy |
Problem, Solution |
| 1037 |
Valid Boomerang |
Easy |
Problem, Solution |
| 1046 |
Last Stone Weight |
Easy |
Problem, Solution |
| 1047 |
Remove All Adjacent Duplicates In String |
Easy |
Problem, Solution |
| 1051 |
Height Checker |
Easy |
Problem, Solution |
| 1071 |
Greatest Common Divisor of Strings |
Easy |
Problem, Solution |
| 1078 |
Occurrences After Bigram |
Easy |
Problem, Solution |
| 1089 |
Duplicate Zeros |
Easy |
Problem, Solution |
| 1103 |
Distribute Candies to People |
Easy |
Problem, Solution |
| 1108 |
Defanging an IP Address |
Easy |
Problem, Solution |
| 1122 |
Relative Sort Array |
Easy |
Problem, Solution |
| 1128 |
Number of Equivalent Domino Pairs |
Easy |
Problem, Solution |
| 1137 |
N-th Tribonacci Number |
Easy |
Problem, Solution |
| 1154 |
Day of the Year |
Easy |
Problem, Solution |
| 1160 |
Find Words That Can Be Formed by Characters |
Easy |
Problem, Solution |
| 1175 |
Prime Arrangements |
Easy |
Problem, Solution |
| 1184 |
Distance Between Bus Stops |
Easy |
Problem, Solution |
| 1185 |
Day of the Week |
Easy |
Problem, Solution |
| 1189 |
Maximum Number of Balloons |
Easy |
Problem, Solution |
| 1200 |
Minimum Absolute Difference |
Easy |
Problem, Solution |
| 1207 |
Unique Number of Occurrences |
Easy |
Problem, Solution |
| 1217 |
Minimum Cost to Move Chips to The Same Position |
Easy |
Problem, Solution |
| 1221 |
Split a String in Balanced Strings |
Easy |
Problem, Solution |
| 1232 |
Check If It Is a Straight Line |
Easy |
Problem, Solution |
| 1252 |
Cells with Odd Values in a Matrix |
Easy |
Problem, Solution |
| 1260 |
Shift 2D Grid |
Easy |
Problem, Solution |
| 1266 |
Minimum Time Visiting All Points |
Easy |
Problem, Solution |
| 1275 |
Find Winner on a Tic Tac Toe Game |
Easy |
Problem, Solution |
| 1281 |
Subtract the Product and Sum of Digits of an Integer |
Easy |
Problem, Solution |
| 1287 |
Element Appearing More Than 25% In Sorted Array |
Easy |
Problem, Solution |
| 1290 |
Convert Binary Number in a Linked List to Integer |
Easy |
Problem, Solution |
| 1295 |
Find Numbers with Even Number of Digits |
Easy |
Problem, Solution |
| 1299 |
Replace Elements with Greatest Element on Right Side |
Easy |
Problem, Solution |
| 1304 |
Find N Unique Integers Sum up to Zero |
Easy |
Problem, Solution |
| 1309 |
Decrypt String from Alphabet to Integer Mapping |
Easy |
Problem, Solution |
| 1313 |
Decompress Run-Length Encoded List |
Easy |
Problem, Solution |
| 1317 |
Convert Integer to the Sum of Two No-Zero Integers |
Easy |
Problem, Solution |
| 1323 |
Maximum 69 Number |
Easy |
Problem, Solution |
| 1331 |
Rank Transform of an Array |
Easy |
Problem, Solution |
| 1332 |
Remove Palindromic Subsequences |
Easy |
Problem, Solution |
| 1337 |
The K Weakest Rows in a Matrix |
Easy |
Problem, Solution |
| 1342 |
Number of Steps to Reduce a Number to Zero |
Easy |
Problem, Solution |
| 1346 |
Check If N and Its Double Exist |
Easy |
Problem, Solution |
| 1351 |
Count Negative Numbers in a Sorted Matrix |
Easy |
Problem, Solution |
| 1360 |
Number of Days Between Two Dates |
Easy |
Problem, Solution |
| 1365 |
How Many Numbers Are Smaller Than the Current Number |
Easy |
Problem, Solution |
| 1370 |
Increasing Decreasing String |
Easy |
Problem, Solution |
| 1374 |
Generate a String With Characters That Have Odd Counts |
Easy |
Problem, Solution |
| 1379 |
Find a Corresponding Node of a Binary Tree in a Clone of That Tree |
Easy |
Problem, Solution |
| 1380 |
Lucky Numbers in a Matrix |
Easy |
Problem, Solution |
| 1385 |
Find the Distance Value Between Two Arrays |
Easy |
Problem, Solution |
| 1389 |
Create Target Array in the Given Order |
Easy |
Problem, Solution |
| 1394 |
Find Lucky Integer in an Array |
Easy |
Problem, Solution |
| 1399 |
Count Largest Group |
Easy |
Problem, Solution |
| 1403 |
Minimum Subsequence in Non-Increasing Order |
Easy |
Problem, Solution |
| 1408 |
String Matching in an Array |
Easy |
Problem, Solution |
| 1413 |
Minimum Value to Get Positive Step by Step Sum |
Easy |
Problem, Solution |
| 1417 |
Reformat The String |
Easy |
Problem, Solution |
| 1422 |
Maximum Score After Splitting a String |
Easy |
Problem, Solution |
| 1431 |
Kids With the Greatest Number of Candies |
Easy |
Problem, Solution |
| 1436 |
Destination City |
Easy |
Problem, Solution |
| 1437 |
Check If All 1's Are at Least Length K Places Away |
Easy |
Problem, Solution |
| 1446 |
Consecutive Characters |
Easy |
Problem, Solution |
| 1450 |
Number of Students Doing Homework at a Given Time |
Easy |
Problem, Solution |
| 1455 |
Check If a Word Occurs As a Prefix of Any Word in a Sentence |
Easy |
Problem, Solution |
| 1460 |
Make Two Arrays Equal by Reversing Subarrays |
Easy |
Problem, Solution |
| 1464 |
Maximum Product of Two Elements in an Array |
Easy |
Problem, Solution |
| 1470 |
Shuffle the Array |
Easy |
Problem, Solution |
| 1475 |
Final Prices With a Special Discount in a Shop |
Easy |
Problem, Solution |
| 1480 |
Running Sum of 1d Array |
Easy |
Problem, Solution |
| 1486 |
XOR Operation in an Array |
Easy |
Problem, Solution |
| 1491 |
Average Salary Excluding the Minimum and Maximum Salary |
Easy |
Problem, Solution |
| 1496 |
Path Crossing |
Easy |
Problem, Solution |
| 1502 |
Can Make Arithmetic Progression From Sequence |
Easy |
Problem, Solution |
| 1507 |
Reformat Date |
Easy |
Problem, Solution |
| 1512 |
Number of Good Pairs |
Easy |
Problem, Solution |
| 1518 |
Water Bottles |
Easy |
Problem, Solution |
| 1523 |
Count Odd Numbers in an Interval Range |
Easy |
Problem, Solution |
| 1528 |
Shuffle String |
Easy |
Problem, Solution |
| 1534 |
Count Good Triplets |
Easy |
Problem, Solution |
| 1539 |
Kth Missing Positive Number |
Easy |
Problem, Solution |
| 1544 |
Make The String Great |
Easy |
Problem, Solution |
| 1550 |
Three Consecutive Odds |
Easy |
Problem, Solution |
| 1556 |
Thousand Separator |
Easy |
Problem, Solution |
| 1560 |
Most Visited Sector in a Circular Track |
Easy |
Problem, Solution |
| 1566 |
Detect Pattern of Length M Repeated K or More Times |
Easy |
Problem, Solution |
| 1572 |
Matrix Diagonal Sum |
Easy |
Problem, Solution |
| 1576 |
Replace All ?'s to Avoid Consecutive Repeating Characters |
Easy |
Problem, Solution |
| 1582 |
Special Positions in a Binary Matrix |
Easy |
Problem, Solution |
| 1588 |
Sum of All Odd Length Subarrays |
Easy |
Problem, Solution |
| 1592 |
Rearrange Spaces Between Words |
Easy |
Problem, Solution |
| 1598 |
Crawler Log Folder |
Easy |
Problem, Solution |
| 1603 |
Design Parking System |
Easy |
Problem, Solution |
| 1608 |
Special Array With X Elements Greater Than or Equal X |
Easy |
Problem, Solution |
| 1614 |
Maximum Nesting Depth of the Parentheses |
Easy |
Problem, Solution |
| 1619 |
Mean of Array After Removing Some Elements |
Easy |
Problem, Solution |
| 1624 |
Largest Substring Between Two Equal Characters |
Easy |
Problem, Solution |
| 1629 |
Slowest Key |
Easy |
Problem, Solution |
| 1636 |
Sort Array by Increasing Frequency |
Easy |
Problem, Solution |
| 1637 |
Widest Vertical Area Between Two Points Containing No Points |
Easy |
Problem, Solution |
| 1640 |
Check Array Formation Through Concatenation |
Easy |
Problem, Solution |
| 1646 |
Get Maximum in Generated Array |
Easy |
Problem, Solution |
| 1652 |
Defuse the Bomb |
Easy |
Problem, Solution |
| 1656 |
Design an Ordered Stream |
Easy |
Problem, Solution |
| 1662 |
Check If Two String Arrays are Equivalent |
Easy |
Problem, Solution |
| 1668 |
Maximum Repeating Substring |
Easy |
Problem, Solution |
| 1672 |
Richest Customer Wealth |
Easy |
Problem, Solution |
| 1678 |
Goal Parser Interpretation |
Easy |
Problem, Solution |
| 1684 |
Count the Number of Consistent Strings |
Easy |
Problem, Solution |
| 1688 |
Count of Matches in Tournament |
Easy |
Problem, Solution |
| 1694 |
Reformat Phone Number |
Easy |
Problem, Solution |
| 1700 |
Number of Students Unable to Eat Lunch |
Easy |
Problem, Solution |
| 1704 |
Determine if String Halves Are Alike |
Easy |
Problem, Solution |
| 1710 |
Maximum Units on a Truck |
Easy |
Problem, Solution |
| 1716 |
Calculate Money in Leetcode Bank |
Easy |
Problem, Solution |
| 1720 |
Decode XORed Array |
Easy |
Problem, Solution |
| 1725 |
Number Of Rectangles That Can Form The Largest Square |
Easy |
Problem, Solution |
| 1732 |
Find the Highest Altitude |
Easy |
Problem, Solution |
| 1736 |
Latest Time by Replacing Hidden Digits |
Easy |
Problem, Solution |
| 1742 |
Maximum Number of Balls in a Box |
Easy |
Problem, Solution |
| 1748 |
Sum of Unique Elements |
Easy |
Problem, Solution |
| 1752 |
Check if Array Is Sorted and Rotated |
Easy |
Problem, Solution |
| 1758 |
Minimum Changes To Make Alternating Binary String |
Easy |
Problem, Solution |
| 1763 |
Longest Nice Substring |
Easy |
Problem, Solution |
| 1768 |
Merge Strings Alternately |
Easy |
Problem, Solution |
| 1773 |
Count Items Matching a Rule |
Easy |
Problem, Solution |
| 1779 |
Find Nearest Point That Has the Same X or Y Coordinate |
Easy |
Problem, Solution |
| 1784 |
Check if Binary String Has at Most One Segment of Ones |
Easy |
Problem, Solution |
| 1790 |
Check if One String Swap Can Make Strings Equal |
Easy |
Problem, Solution |
| 1791 |
Find Center of Star Graph |
Easy |
Problem, Solution |
| 1796 |
Second Largest Digit in a String |
Easy |
Problem, Solution |
| 1800 |
Maximum Ascending Subarray Sum |
Easy |
Problem, Solution |
| 1805 |
Number of Different Integers in a String |
Easy |
Problem, Solution |
| 1812 |
Determine Color of a Chessboard Square |
Easy |
Problem, Solution |
| 1816 |
Truncate Sentence |
Easy |
Problem, Solution |
| 1822 |
Sign of the Product of an Array |
Easy |
Problem, Solution |
| 1827 |
Minimum Operations to Make the Array Increasing |
Easy |
Problem, Solution |
| 1832 |
Check if the Sentence Is Pangram |
Easy |
Problem, Solution |
| 1837 |
Sum of Digits in Base K |
Easy |
Problem, Solution |
| 1844 |
Replace All Digits with Characters |
Easy |
Problem, Solution |
| 1848 |
Minimum Distance to the Target Element |
Easy |
Problem, Solution |
| 1854 |
Maximum Population Year |
Easy |
Problem, Solution |
| 1859 |
Sorting the Sentence |
Easy |
Problem, Solution |
| 1863 |
Sum of All Subset XOR Totals |
Easy |
Problem, Solution |
| 1869 |
Longer Contiguous Segments of Ones than Zeros |
Easy |
Problem, Solution |
| 1876 |
Substrings of Size Three with Distinct Characters |
Easy |
Problem, Solution |
| 1880 |
Check if Word Equals Summation of Two Words |
Easy |
Problem, Solution |
| 1886 |
Determine Whether Matrix Can Be Obtained By Rotation |
Easy |
Problem, Solution |
| 1893 |
Check if All the Integers in a Range Are Covered |
Easy |
Problem, Solution |
| 1897 |
Redistribute Characters to Make All Strings Equal |
Easy |
Problem, Solution |
| 1903 |
Largest Odd Number in String |
Easy |
Problem, Solution |
| 1909 |
Remove One Element to Make the Array Strictly Increasing |
Easy |
Problem, Solution |
| 1913 |
Maximum Product Difference Between Two Pairs |
Easy |
Problem, Solution |
| 1920 |
Build Array from Permutation |
Easy |
Problem, Solution |
| 1925 |
Count Square Sum Triples |
Easy |
Problem, Solution |
| 1929 |
Concatenation of Array |
Easy |
Problem, Solution |
| 1935 |
Maximum Number of Words You Can Type |
Easy |
Problem, Solution |
| 1941 |
Check if All Characters Have Equal Number of Occurrences |
Easy |
Problem, Solution |
| 1945 |
Sum of Digits of String After Convert |
Easy |
Problem, Solution |
| 1952 |
Three Divisors |
Easy |
Problem, Solution |
| 1957 |
Delete Characters to Make Fancy String |
Easy |
Problem, Solution |
| 1961 |
Check If String Is a Prefix of Array |
Easy |
Problem, Solution |
| 1967 |
Number of Strings That Appear as Substrings in Word |
Easy |
Problem, Solution |
| 1971 |
Find if Path Exists in Graph |
Easy |
Problem, Solution |
| 1974 |
Minimum Time to Type Word Using Special Typewriter |
Easy |
Problem, Solution |
| 1979 |
Find Greatest Common Divisor of Array |
Easy |
Problem, Solution |
| 1984 |
Minimum Difference Between Highest and Lowest of K Scores |
Easy |
Problem, Solution |
| 1991 |
Find the Middle Index in Array |
Easy |
Problem, Solution |
| 1995 |
Count Special Quadruplets |
Easy |
Problem, Solution |
| 2000 |
Reverse Prefix of Word |
Easy |
Problem, Solution |
| 2006 |
Count Number of Pairs With Absolute Difference K |
Easy |
Problem, Solution |
| 2011 |
Final Value of Variable After Performing Operations |
Easy |
Problem, Solution |
| 2016 |
Maximum Difference Between Increasing Elements |
Easy |
Problem, Solution |
| 2022 |
Convert 1D Array Into 2D Array |
Easy |
Problem, Solution |
| 2027 |
Minimum Moves to Convert String |
Easy |
Problem, Solution |
| 2032 |
Two Out of Three |
Easy |
Problem, Solution |
| 2037 |
Minimum Number of Moves to Seat Everyone |
Easy |
Problem, Solution |
| 2042 |
Check if Numbers Are Ascending in a Sentence |
Easy |
Problem, Solution |
| 2047 |
Number of Valid Words in a Sentence |
Easy |
Problem, Solution |
| 2053 |
Kth Distinct String in an Array |
Easy |
Problem, Solution |
| 2057 |
Smallest Index With Equal Value |
Easy |
Problem, Solution |
| 2062 |
Count Vowel Substrings of a String |
Easy |
Problem, Solution |
| 2068 |
Check Whether Two Strings are Almost Equivalent |
Easy |
Problem, Solution |
| 2073 |
Time Needed to Buy Tickets |
Easy |
Problem, Solution |
| 2078 |
Two Furthest Houses With Different Colors |
Easy |
Problem, Solution |
| 2085 |
Count Common Words With One Occurrence |
Easy |
Problem, Solution |
| 2089 |
Find Target Indices After Sorting Array |
Easy |
Problem, Solution |
| 2094 |
Finding 3-Digit Even Numbers |
Easy |
Problem, Solution |
| 2099 |
Find Subsequence of Length K With the Largest Sum |
Easy |
Problem, Solution |
| 2103 |
Rings and Rods |
Easy |
Problem, Solution |
| 2108 |
Find First Palindromic String in the Array |
Easy |
Problem, Solution |
| 2114 |
Maximum Number of Words Found in Sentences |
Easy |
Problem, Solution |
| 2119 |
A Number After a Double Reversal |
Easy |
Problem, Solution |
| 2124 |
Check if All A's Appears Before All B's |
Easy |
Problem, Solution |
| 2129 |
Capitalize the Title |
Easy |
Problem, Solution |
| 2133 |
Check if Every Row and Column Contains All Numbers |
Easy |
Problem, Solution |
| 2138 |
Divide a String Into Groups of Size k |
Easy |
Problem, Solution |
| 2144 |
Minimum Cost of Buying Candies With Discount |
Easy |
Problem, Solution |
| 2148 |
Count Elements With Strictly Smaller and Greater Elements |
Easy |
Problem, Solution |
| 2154 |
Keep Multiplying Found Values by Two |
Easy |
Problem, Solution |
| 2160 |
Minimum Sum of Four Digit Number After Splitting Digits |
Easy |
Problem, Solution |
| 2164 |
Sort Even and Odd Indices Independently |
Easy |
Problem, Solution |
| 2169 |
Count Operations to Obtain Zero |
Easy |
Problem, Solution |
| 2176 |
Count Equal and Divisible Pairs in an Array |
Easy |
Problem, Solution |
| 2180 |
Count Integers With Even Digit Sum |
Easy |
Problem, Solution |
| 2185 |
Counting Words With a Given Prefix |
Easy |
Problem, Solution |
| 2190 |
Most Frequent Number Following Key In an Array |
Easy |
Problem, Solution |
| 2194 |
Cells in a Range on an Excel Sheet |
Easy |
Problem, Solution |
| 2200 |
Find All K-Distant Indices in an Array |
Easy |
Problem, Solution |
| 2206 |
Divide Array Into Equal Pairs |
Easy |
Problem, Solution |
| 2210 |
Count Hills and Valleys in an Array |
Easy |
Problem, Solution |
| 2215 |
Find the Difference of Two Arrays |
Easy |
Problem, Solution |
| 2220 |
Minimum Bit Flips to Convert Number |
Easy |
Problem, Solution |
| 2224 |
Minimum Number of Operations to Convert Time |
Easy |
Problem, Solution |
| 2231 |
Largest Number After Digit Swaps by Parity |
Easy |
Problem, Solution |
| 2235 |
Add Two Integers |
Easy |
Problem, Solution |
| 2236 |
Root Equals Sum of Children |
Easy |
Problem, Solution |
| 2239 |
Find Closest Number to Zero |
Easy |
Problem, Solution |
| 2243 |
Calculate Digit Sum of a String |
Easy |
Problem, Solution |
| 2248 |
Intersection of Multiple Arrays |
Easy |
Problem, Solution |
| 2255 |
Count Prefixes of a Given String |
Easy |
Problem, Solution |
| 2259 |
Remove Digit From Number to Maximize Result |
Easy |
Problem, Solution |
| 2264 |
Largest 3-Same-Digit Number in String |
Easy |
Problem, Solution |
| 2269 |
Find the K-Beauty of a Number |
Easy |
Problem, Solution |
| 2273 |
Find Resultant Array After Removing Anagrams |
Easy |
Problem, Solution |
| 2278 |
Percentage of Letter in String |
Easy |
Problem, Solution |
| 2283 |
Check if Number Has Equal Digit Count and Digit Value |
Easy |
Problem, Solution |
| 2287 |
Rearrange Characters to Make Target String |
Easy |
Problem, Solution |
| 2293 |
Min Max Game |
Easy |
Problem, Solution |
| 2299 |
Strong Password Checker II |
Easy |
Problem, Solution |
| 2303 |
Calculate Amount Paid in Taxes |
Easy |
Problem, Solution |
| 2309 |
Greatest English Letter in Upper and Lower Case |
Easy |
Problem, Solution |
| 2315 |
Count Asterisks |
Easy |
Problem, Solution |
| 2319 |
Check if Matrix Is X-Matrix |
Easy |
Problem, Solution |
| 2325 |
Decode the Message |
Easy |
Problem, Solution |
| 2331 |
Evaluate Boolean Binary Tree |
Easy |
Problem, Solution |
| 2335 |
Minimum Amount of Time to Fill Cups |
Easy |
Problem, Solution |
| 2341 |
Maximum Number of Pairs in Array |
Easy |
Problem, Solution |
| 2347 |
Best Poker Hand |
Easy |
Problem, Solution |
| 2351 |
First Letter to Appear Twice |
Easy |
Problem, Solution |
| 2357 |
Make Array Zero by Subtracting Equal Amounts |
Easy |
Problem, Solution |
| 2363 |
Merge Similar Items |
Easy |
Problem, Solution |
| 2367 |
Number of Arithmetic Triplets |
Easy |
Problem, Solution |
| 2373 |
Largest Local Values in a Matrix |
Easy |
Problem, Solution |
| 2379 |
Minimum Recolors to Get K Consecutive Black Blocks |
Easy |
Problem, Solution |
| 2383 |
Minimum Hours of Training to Win a Competition |
Easy |
Problem, Solution |
| 2389 |
Longest Subsequence With Limited Sum |
Easy |
Problem, Solution |
| 2395 |
Find Subarrays With Equal Sum |
Easy |
Problem, Solution |
| 2399 |
Check Distances Between Same Letters |
Easy |
Problem, Solution |
| 2404 |
Most Frequent Even Element |
Easy |
Problem, Solution |
| 2409 |
Count Days Spent Together |
Easy |
Problem, Solution |
| 2413 |
Smallest Even Multiple |
Easy |
Problem, Solution |
| 2418 |
Sort the People |
Easy |
Problem, Solution |
| 2423 |
Remove Letter To Equalize Frequency |
Easy |
Problem, Solution |