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Coding & Algorithms Interview Questions
Practice 9403 coding, system design and machine learning questions from 546 companies, sorted by role, topic and interview round. Every question has step-by-step hints, a code runner that supports 8 languages and an AI mentor; members also get the full solution walkthrough.
- 9403
- Questions
- 546
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- 11
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- 8
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Showing 961–990 of 1706 results
- NVIDIAMediumSoftware EngineerFind Top K Frequent Elements
This question evaluates a candidate's proficiency with frequency counting, selection techniques, use of appropriate data structures, and algorithmic time and space complexity analysis.
Coding & AlgorithmsTechnical Screen - NVIDIAMediumSoftware EngineerFind minimum time to cross bridge with flashlight
This problem tests your ability to model a greedy strategy and handle state transitions under constraints to minimize the total time taken for a group to cross a bridge.
Coding & AlgorithmsTechnical ScreenGreedySortingOptimization - NVIDIAEasySoftware EngineerFind the nth prime number
This question assesses algorithmic problem-solving and number-theoretic computation skills, requiring efficient prime generation and complexity analysis in the Coding & Algorithms domain.
Coding & AlgorithmsTechnical Screen - NVIDIAMediumData EngineerMerge Overlapping Time Intervals
Practice a NVIDIA coding interview problem focused on merge overlapping time intervals. The prompt emphasizes edge cases, clean implementation, and verifiable test behavior without revealing the solution.
Coding & AlgorithmsTechnical Screen - NVIDIAMediumSoftware EngineerReconstruct tree from inorder and postorder
This question evaluates understanding of binary tree traversal relationships, recursive construction techniques, and algorithmic time and space complexity, reflecting core data structures and recursion competencies.
Coding & AlgorithmsTechnical Screen - NVIDIAEasySoftware EngineerReturn all file paths via DFS
This question evaluates understanding of tree traversal and depth-first search along with competence in handling hierarchical data structures and constructing full file paths.
Coding & AlgorithmsTechnical Screen - NVIDIAMediumSoftware EngineerSolve anagram grouping and in-place allocator
This problem tests string hashing/sorting techniques for grouping anagrams and the ability to manage fixed-size memory blocks in-place without auxiliary data structures.
Coding & AlgorithmsTechnical ScreenHash MapsString ManipulationTwo Pointers - NVIDIAMediumSoftware EngineerSolve unique triplets summing to target
Solve unique triplets summing to target evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Coding & AlgorithmsTechnical Screen - Nash AIMediumSoftware EngineerImplement Minesweeper click and print
Implement Minesweeper click and print evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Coding & AlgorithmsTechnical Screen - Nash AIMediumSoftware EngineerImplement Minesweeper click-to-reveal expansion
This problem tests your ability to implement recursive traversal (flood-fill) on a 2D grid and manage game state transitions based on player input.
Coding & AlgorithmsTechnical ScreenDFSBFSMatrix - NetflixMediumSoftware EngineerAnalyze Overlap in Closed Intervals
Implement an algorithm to determine how many closed intervals contain each point in a given list of query coordinates. The problem evaluates interval sweep-line techniques or binary search decomposition, boundary handling, and time/space complexity.
Coding & AlgorithmsTechnical Screenbinary-searchintervalssweep-line - NetflixEasySoftware EngineerCompute Minimum Broadcast Latencies Between Cities
Implement Dijkstra's algorithm to compute the minimum broadcast latency from a source city to all other cities in an undirected, weighted network.
Coding & AlgorithmsTechnical Screengraphdijkstrashortest-path - NetflixMediumSoftware EngineerCompute Minimum Task Completion Time
This problem tests your ability to model task dependencies as a Directed Acyclic Graph (DAG) and compute the longest path in that graph to determine the earliest completion time.
Coding & AlgorithmsTechnical ScreenGraphTopological SortDynamic Programming - NetflixMediumSoftware EngineerCount Pairs of Strings with Disjoint Character Sets
Tests bitmask representation of character sets, frequency-based pair counting, and handling edge cases like empty strings.
Coding & AlgorithmsTechnical ScreenBit ManipulationHash TableString - NetflixHardSoftware EngineerDesign command executor with undo
This problem tests the application of the Command design pattern and stack-based data structures to manage reversible operations in an application state.
Coding & AlgorithmsTechnical ScreenDesign PatternsStacksCommand Pattern - NetflixMediumSoftware EngineerFind longest run of identical consecutive shows
This question tests the ability to track state while iterating through an array to identify the longest contiguous sub-sequence of identical elements.
Coding & AlgorithmsTechnical ScreenArraysIterationAlgorithms - NetflixMediumSoftware EngineerFind longest unique show window
This question evaluates concepts in sliding-window algorithms, hash-based duplicate tracking, case-insensitive string handling, and the extension of batch solutions to streaming (online) inputs.
Coding & AlgorithmsTechnical Screen - NetflixMediumSoftware EngineerFind the Longest Run of One Character
Tests linear scan and two-pointer/state-tracking techniques to find the maximum number of consecutive identical characters in an ASCII string using constant auxiliary space.
Coding & AlgorithmsTechnical Screenstringstwo-pointerslinear-scan - NetflixMediumSoftware EngineerFind the Longest Substring Without Repeated Characters
Tests sliding window technique, hash map index tracking, and linear-time constraint optimization on string manipulation.
Coding & AlgorithmsTechnical ScreenSliding WindowTwo PointersHash Table - NetflixMediumMachine Learning EngineerImplement Streaming Word Counter
This question evaluates streaming data processing, string tokenization, and frequency-aggregation competencies, focusing on maintaining accurate counts over incremental text inputs using associative data structures.
Coding & AlgorithmsTechnical Screen - NetflixHardData EngineerImplement a Weighted Eviction Cache
This problem tests your ability to design a cache that respects both memory capacity and item weights, requiring an efficient combination of a hash map and a doubly linked list.
Coding & AlgorithmsTechnical ScreenHash MapDoubly Linked ListLRU Cache - NetflixMediumSoftware EngineerImplement weighted-eviction cache
This question evaluates understanding and practical implementation of data structures and algorithms for a weighted cache, including weighted eviction policies, use of ordered maps, and time-space complexity analysis.
Coding & AlgorithmsTechnical Screen - NetflixMediumSoftware EngineerReturn the longest contiguous subarray with all distinct values
This problem tests your ability to use the sliding window pattern and a hash map to maintain a range of unique elements efficiently in O(n) time.
Coding & AlgorithmsTechnical ScreenSliding WindowHash MapArrays - NetflixMediumSoftware EngineerSimulate a TTL Cache with LRU Eviction
Implement a fixed-capacity key-value cache combining per-key TTL expiration with LRU eviction and O(1) average time per operation.
Coding & AlgorithmsTechnical ScreenCacheLRUHash Table - NetflixMediumSoftware EngineerSolve non-repeating show substring
This question evaluates understanding of sequence processing, uniqueness detection, and the use of auxiliary data structures to track previously seen elements when finding non-repeating contiguous subsequences, applied to show names instead of characters.
Coding & AlgorithmsTechnical Screen - NetflixMediumSoftware EngineerSolve sliding-window and disjoint-string-pairs tasks
This question tests the ability to combine sliding window techniques with bit manipulation or frequency counting to identify pairs of substrings that share no common characters.
Coding & AlgorithmsTechnical ScreenStringsBit ManipulationSliding Window - NewrelicHardSoftware EngineerMaximum Path Sum in an Indexed Binary Tree
This problem tests tree traversal techniques on an index-based representation, focusing on handling negative weights and memory efficiency via an iterative post-order approach.
Coding & AlgorithmsTechnical ScreenBinary TreeDynamic ProgrammingIterative Traversal - NewrelicHardSoftware EngineerProduct of Array Except Self Without Division
This problem tests array manipulation skills and the ability to optimize space complexity by using prefix and suffix product passes instead of division.
Coding & AlgorithmsTechnical ScreenArraysPrefix-SumOptimization - NextdoorMediumMachine Learning EngineerBuild Ranked Feed With Photo Batching
This question evaluates algorithmic reasoning and data manipulation skills, including stable sorting, grouping/batching, and merging of ranked items while preserving ordering invariants.
Coding & AlgorithmsTechnical Screen - NextdoorEasyiOS EngineerFlatten Nested Comments
This problem tests your ability to traverse a nested tree structure (comments) and flatten it into a linear representation while respecting hierarchical depth levels.
Coding & AlgorithmsTechnical ScreenTreesRecursionData Structures
NVIDIA
Netflix
Nextdoor