array simulation Pattern
26 problems
Pattern pages help build reusable solving frames. Identify signals first, then explain state, transition, and edge handling.
Recognition Signals
- Focus on handling overlapping poison durations correctly.
- Check if candidates use linear iteration instead of nested loops.
- Look for an approach that avoids recomputing the sum after each query.
Solve Flow
- 1. Define the active state/window.
- 2. Update state while preserving invariants.
- 3. Validate with edge-heavy examples.
Common Misses
- Double-counting seconds when poison durations overlap.
- Recomputing the sum of even numbers from scratch after each query, causing TLE.
- Overwriting elements instead of shifting them during insertion.
Recommended Ladder
Teemo Attacking
Compute the total poisoned time Ashe experiences from Teemo's attacks using an array-based simulation approach efficient…
Sum of Even Numbers After Queries
Efficiently update an integer array based on queries and compute the sum of even numbers after each modification using s…
Create Target Array in the Given Order
Learn how to efficiently create a target array by inserting elements at specified indices using array simulation techniq…
Find the Winner of an Array Game
Determine the integer that wins an array game by achieving k consecutive victories through simulated pairwise comparison…
Most Visited Sector in a Circular Track
Determine which sectors on a circular track are visited most frequently using array and simulation techniques efficientl…
Count Unhappy Friends
Determine the number of unhappy friends in paired arrangements using array-based simulation for preference violations.
Maximum Profit of Operating a Centennial Wheel
Maximize the profit from operating a Centennial Wheel by determining the optimal number of rotations based on customer a…
Get Maximum in Generated Array
Compute the maximum value in a generated array using defined recurrence rules, leveraging array simulation techniques ef…
Average Waiting Time
Compute the average waiting time for customers using array traversal and simulation of a single chef processing orders s…
Build Array from Permutation
The problem asks to build an array from a given permutation using an efficient approach.
Concatenation of Array
This problem asks you to create an array of double the size, where each element is repeated twice in sequence.
Watering Plants
Simulate watering plants while managing a watering can's capacity, considering distance and refills.
Min Max Game
The Min Max Game problem requires simulating an array reduction process to find the last remaining number.
Calculate Amount Paid in Taxes
Calculate the total tax owed by iterating through sorted brackets and applying each rate incrementally to your income.
Separate the Digits in an Array
Given an array of positive integers, separate each integer into its individual digits while preserving the original orde…
Determine the Winner of a Bowling Game
Simulate a bowling game to determine the winner based on hit pins per turn for two players.
Semi-Ordered Permutation
Find the minimum number of operations to convert a permutation into a semi-ordered permutation where 1 is first and n is…
Last Visited Integers
This problem involves finding the last visited integer for each -1 in a given array by simulating a stack-like behavior.
Count Tested Devices After Test Operations
Simulate testing devices based on battery percentages to determine how many pass the test operations in sequence.
Ant on the Boundary
Solve the problem of counting how often an ant returns to a boundary based on the steps described in the input array.
Maximum Number of Operations With the Same Score I
Determine the maximum number of operations in an integer array where each operation must produce the same score.
Distribute Elements Into Two Arrays I
Distribute elements from a distinct integer array into two subarrays using a sequential simulation strategy for optimal …
Find The First Player to win K Games in a Row
Determine which player first wins k consecutive games using array simulation logic to track ongoing victories efficientl…
Make Array Elements Equal to Zero
Learn how to transform an integer array to zeros using simulation and directional selection efficiently and reliably.
Transformed Array
Simulate operations on a circular array to return a transformed result array following specific rules.
Find the Minimum Amount of Time to Brew Potions
This problem involves calculating the minimum time required for wizards to brew potions based on their skills and mana u…