coding
Medium
Verified
DAG Order Validator
Category: Topological sort coding problem# DAG Order Validator Given a Directed Acyclic Graph (DAG) and a list of nodes, determine if the list represents a valid topological sort...Input: Graph (nodes and edges)
Output: Computed result
coding
Medium
Verified
Expression Evaluator
Category: String coding problem# Expression Evaluator You need to design and implement an expression evaluator that parses and computes mathematical expressions formatted in...Input: String
Output: Computed result
coding
Medium
Verified
Knight Moves on Phone
Category: String coding problem# Knight Moves on Phone This problem is split into two parts.Input: List
Output: Integer
coding
Medium
Verified
Price Change Aggregator
Category: Algorithm coding problem# Price Change Aggregator You are building a system to aggregate price updates from multiple feeds to reconstruct the price history of an asset.Input: List
Output: Computed result
coding
Hard
Verified
Visit All Cities
Category: Graph coding problem# Visit All Cities You are given a list of airline tickets where each ticket represents a directed edge from a departure airport to an arrival...Input: Graph (nodes and edges)
Output: Computed result
coding
Medium
Verified
Social Network Friend Suggester
Category: Array coding problemBuild a friend recommendation system for a social network. Given
n users (indexed 0 to n - 1) and a list of existing friendships (undirected...Input: ArrayOutput: Array
coding
Medium
Verified
Minimum Sum Tree Path
Category: Binary tree coding problem# Minimum Sum Tree PathInput: Binary tree
Output: Computed result
coding
Medium
Verified
Dial Pad Knight Paths
Category: Algorithm coding problem# Dial Pad Knight PathsInput: Number(s)
Output: Integer
coding
Hard
Verified
Subsequence Goodness Values
Category: Array coding problem# Subsequence Goodness ValuesInput: Array
Output: Integer
coding
Medium
Verified
Sliding Window Top K
Category: Sliding window coding problem# Sliding Window Top KInput: Array of integers
Output: Computed result
coding
Medium
Verified
Price Stream Merger
Category: Heap-based coding problem# Price Stream MergerInput: List
Output: Computed result
coding
Hard
Verified
Pandigital Addition Count
Category: Algorithm coding problem# Pandigital Addition CountInput: Integer(s)
Output: Computed result
coding
Medium
Verified
Closest Point Pair
Category: Algorithm coding problem# Closest Point PairInput: List
Output: Integer
coding
Hard
Verified
Flight Itinerary Planner
Category: Graph coding problem# Flight Itinerary PlannerInput: Graph (nodes and edges)
Output: Computed result
coding
Hard
Verified
Process Schedule Counter
Category: Algorithm coding problem# Process Schedule CounterInput: List
Output: Integer
coding
Medium
Verified
[CodeSignal] Common Free Slot
Category: Interval-based coding problem# [CodeSignal] Common Free SlotInput: List
Output: Computed result
coding
Easy
Verified
[CodeSignal] Stable Server Segments
Category: Array coding problem# [CodeSignal] Stable Server SegmentsInput: Array
Output: Computed result
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