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PhantomCodeAI
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LeetCode Problems
Simulation
Simulation
Problems
171 Simulation LeetCode problems · Solve with AI-powered hints & step-by-step explanations.
43
Multiply Strings
Medium
54
Spiral Matrix
Medium
59
Spiral Matrix II
Medium
67
Add Binary
Easy
68
Text Justification
Hard
258
Add Digits
Easy
289
Game of Life
Medium
412
Fizz Buzz
Easy
415
Add Strings
Easy
495
Teemo Attacking
Easy
498
Diagonal Traverse
Medium
537
Complex Number Multiplication
Medium
566
Reshape the Matrix
Easy
592
Fraction Addition and Subtraction
Medium
640
Solve the Equation
Medium
657
Robot Return to Origin
Easy
682
Baseball Game
Easy
735
Asteroid Collision
Medium
749
Contain Virus
Hard
832
Flipping an Image
Easy
844
Backspace String Compare
Easy
867
Transpose Matrix
Easy
874
Walking Robot Simulation
Medium
885
Spiral Matrix III
Medium
946
Validate Stack Sequences
Medium
950
Reveal Cards In Increasing Order
Medium
985
Sum of Even Numbers After Queries
Medium
999
Available Captures for Rook
Easy
1006
Clumsy Factorial
Medium
1041
Robot Bounded In Circle
Medium
1094
Car Pooling
Medium
1103
Distribute Candies to People
Easy
1222
Queens That Can Attack the King
Medium
1252
Cells with Odd Values in a Matrix
Easy
1260
Shift 2D Grid
Easy
1275
Find Winner on a Tic Tac Toe Game
Easy
1324
Print Words Vertically
Medium
1389
Create Target Array in the Given Order
Easy
1404
Number of Steps to Reduce a Number in Binary Representation to One
Medium
1409
Queries on a Permutation With Key
Medium
1441
Build an Array With Stack Operations
Medium
1503
Last Moment Before All Ants Fall Out of a Plank
Medium
1518
Water Bottles
Easy
1535
Find the Winner of an Array Game
Medium
1545
Find Kth Bit in Nth Binary String
Medium
1560
Most Visited Sector in a Circular Track
Easy
1562
Find Latest Group of Size M
Medium
1583
Count Unhappy Friends
Medium
1599
Maximum Profit of Operating a Centennial Wheel
Medium
1603
Design Parking System
Easy
1646
Get Maximum in Generated Array
Easy
1680
Concatenation of Consecutive Binary Numbers
Medium
1688
Count of Matches in Tournament
Easy
1700
Number of Students Unable to Eat Lunch
Easy
1701
Average Waiting Time
Medium
1706
Where Will the Ball Fall
Medium
1801
Number of Orders in the Backlog
Medium
1806
Minimum Number of Operations to Reinitialize a Permutation
Medium
1823
Find the Winner of the Circular Game
Medium
1860
Incremental Memory Leak
Medium
1894
Find the Student that Will Replace the Chalk
Medium
1910
Remove All Occurrences of a Substring
Medium
1914
Cyclically Rotating a Grid
Medium
1920
Build Array from Permutation
Easy
1929
Concatenation of Array
Easy
1945
Sum of Digits of String After Convert
Easy
2011
Final Value of Variable After Performing Operations
Easy
2022
Convert 1D Array Into 2D Array
Easy
2028
Find Missing Observations
Medium
2043
Simple Bank System
Medium
2056
Number of Valid Move Combinations On Chessboard
Hard
2069
Walking Robot Simulation II
Medium
2073
Time Needed to Buy Tickets
Easy
2075
Decode the Slanted Ciphertext
Medium
2079
Watering Plants
Medium
2105
Watering Plants II
Medium
2109
Adding Spaces to a String
Medium
2120
Execution of All Suffix Instructions Staying in a Grid
Medium
2138
Divide a String Into Groups of Size k
Easy
2149
Rearrange Array Elements by Sign
Medium
2154
Keep Multiplying Found Values by Two
Easy
2161
Partition Array According to Given Pivot
Medium
2169
Count Operations to Obtain Zero
Easy
2177
Find Three Consecutive Integers That Sum to a Given Number
Medium
2180
Count Integers With Even Digit Sum
Easy
2181
Merge Nodes in Between Zeros
Medium
2201
Count Artifacts That Can Be Extracted
Medium
2211
Count Collisions on a Road
Medium
2221
Find Triangular Sum of an Array
Medium
2243
Calculate Digit Sum of a String
Easy
2257
Count Unguarded Cells in the Grid
Medium
2293
Min Max Game
Easy
2295
Replace Elements in an Array
Medium
2296
Design a Text Editor
Hard
2303
Calculate Amount Paid in Taxes
Easy
2326
Spiral Matrix IV
Medium
2327
Number of People Aware of a Secret
Medium
2352
Equal Row and Column Pairs
Medium
2357
Make Array Zero by Subtracting Equal Amounts
Easy
2365
Task Scheduler II
Medium
2380
Time Needed to Rearrange a Binary String
Medium
2390
Removing Stars From a String
Medium
2402
Meeting Rooms III
Hard
2460
Apply Operations to an Array
Easy
2462
Total Cost to Hire K Workers
Medium
2482
Difference Between Ones and Zeros in Row and Column
Medium
2500
Delete Greatest Value in Each Row
Easy
2502
Design Memory Allocator
Medium
2507
Smallest Value After Replacing With Sum of Prime Factors
Medium
2532
Time to Cross a Bridge
Hard
2549
Count Distinct Numbers on Board
Easy
2553
Separate the Digits in an Array
Easy
2558
Take Gifts From the Richest Pile
Easy
2562
Find the Array Concatenation Value
Easy
2582
Pass the Pillow
Easy
2593
Find Score of an Array After Marking All Elements
Medium
2596
Check Knight Tour Configuration
Medium
2660
Determine the Winner of a Bowling Game
Easy
2679
Sum in a Matrix
Medium
2682
Find the Losers of the Circular Game
Easy
2696
Minimum String Length After Removing Substrings
Easy
2717
Semi-Ordered Permutation
Easy
2739
Total Distance Traveled
Easy
2744
Find Maximum Number of String Pairs
Easy
2751
Robot Collisions
Hard
2766
Relocate Marbles
Medium
2810
Faulty Keyboard
Easy
2899
Last Visited Integers
Easy
2946
Matrix Similarity After Cyclic Shifts
Easy
2960
Count Tested Devices After Test Operations
Easy
2961
Double Modular Exponentiation
Medium
2974
Minimum Number Game
Easy
3028
Ant on the Boundary
Easy
3038
Maximum Number of Operations With the Same Score I
Easy
3066
Minimum Operations to Exceed Threshold Value II
Medium
3069
Distribute Elements Into Two Arrays I
Easy
3072
Distribute Elements Into Two Arrays II
Hard
3080
Mark Elements on Array by Performing Queries
Medium
3100
Water Bottles II
Medium
3160
Find the Number of Distinct Colors Among the Balls
Medium
3168
Minimum Number of Chairs in a Waiting Room
Easy
3174
Clear Digits
Easy
3175
Find The First Player to win K Games in a Row
Medium
3178
Find the Child Who Has the Ball After K Seconds
Easy
3179
Find the N-th Value After K Seconds
Medium
3222
Find the Winning Player in Coin Game
Easy
3242
Design Neighbor Sum Service
Easy
3248
Snake in Matrix
Easy
3264
Final Array State After K Multiplication Operations I
Easy
3266
Final Array State After K Multiplication Operations II
Hard
3271
Hash Divided String
Medium
3304
Find the K-th Character in String Game I
Easy
3324
Find the Sequence of Strings Appeared on the Screen
Medium
3354
Make Array Elements Equal to Zero
Easy
3360
Stone Removal Game
Easy
3379
Transformed Array
Easy
3412
Find Mirror Score of a String
Medium
3417
Zigzag Grid Traversal With Skip
Easy
3433
Count Mentions Per User
Medium
3461
Check If Digits Are Equal in String After Operations I
Easy
3477
Fruits Into Baskets II
Easy
3494
Find the Minimum Amount of Time to Brew Potions
Medium
3498
Reverse Degree of a String
Easy
3507
Minimum Pair Removal to Sort Array I
Easy
3510
Minimum Pair Removal to Sort Array II
Hard
3522
Calculate Score After Performing Instructions
Medium
3561
Resulting String After Adjacent Removals
Medium
3582
Generate Tag for Video Caption
Easy
3597
Partition String
Medium
3612
Process String with Special Operations I
Medium
3614
Process String with Special Operations II
Hard
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