coding
Hard
Verified
[CodeSignal] Synchronized Pipeline Delays
Category: Binary tree coding problemA hierarchical data pipeline consists of
n broadcast stages, numbered 1 to n, arranged in a perfect binary tree rooted at stage 0. Each stage...Input: Binary treeOutput: Computed result
coding
Medium
Verified
Region Grid Coloring
Category: Grid/matrix coding problemYou are given an
M x N grid of security zones. Each cell contains one of the following values: - 1 -- the zone is cleared - 0 -- the zone...Input: 2D gridOutput: Computed result
coding
Hard
Verified
Dual Extremes Queue
Category: Queue-based coding problemDesign a
StreamBuffer class that buffers a stream of integer latency samples in FIFO order and supports O(1) access to both the minimum and maximum...Input: Integer(s)Output: Integer
coding
Medium
Verified
Circular Signal Window
Category: Array coding problemYou are given a circular array
signal of 0s and 1s representing antenna readings logged in sequence, where 1 means good signal and 0 means...Input: ArrayOutput: Integer
coding
Medium
Verified
Pattern First Occurrence
Category: String coding problemYou are given a search
pattern and a log string, both consisting of uppercase letters and the wildcard character *. The * wildcard matches...Input: StringOutput: Computed result
coding
Medium
Verified
[CodeSignal] Minimum Score Suppressor
Category: Algorithm coding problemYou are given a list of ad
budgets (integers) and an integer k representing the number of throttle operations available. Each operation selects...Input: ListOutput: Integer
coding
Medium
Verified
[CodeSignal] Optimal Voucher Allocation
Category: Algorithm coding problemYou are given
couponsCount discount coupons and a list of monthly service fees. Each coupon halves one service fee using integer floor division....Input: ListOutput: Integer
coding
Medium
Verified
Remove Consecutive for Balance
Category: Array coding problemYou are given a list of track lengths
tracks and a positive integer k. Remove exactly k consecutive tracks from the list so that the sum of...Input: ArrayOutput: Computed result
coding
Hard
Verified
Spread Avoidance Escape
Category: Grid/matrix coding problemYou are navigating a facility grid to escape from spreading contamination. The grid contains: -
'S' - your starting position - 'C' - the...Input: 2D gridOutput: Integer
coding
Medium
Verified
Path Prefix Router
Category: String coding problemDesign a CDN route manager class
CdnRouter that maps URL paths to origin servers using longest-prefix matching. Implement the following methods: -...Input: StringOutput: Computed result
coding
Easy
Verified
Character String Adder
Category: Array coding problemA string-based calculator receives two numbers as arrays of digit characters. Each array represents a signed integer -- digits only, with an optional...Input: Array
Output: Computed result
coding
Hard
Verified
Tiered Order Pricing
Category: String coding problemA warehouse fulfillment system batches orders to minimize shipping costs. Orders for the same SKU that are placed within 5 minutes (300,000 ms) of...Input: String
Output: Integer
coding
Easy
Verified
HTML Tag Renderer
Category: Tree coding problemA document template engine serializes a tree of nodes into a markup string. You are given the tree as two parallel arrays: -
tags: the tag name for...Input: ArrayOutput: Computed result
coding
Medium
Verified
Bounded Repeat Substring
Category: String coding problemA sensor data stream is represented as a string of characters. A contiguous segment of the stream is considered valid if it contains no three...Input: String
Output: Computed result
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