Coding & Algorithms interview questions

Showing 3031–3060 of 3276 results

• Robot Grid Route with Charging Cells: Fewest Charges, Then Battery, Then MovesMedium

  A grid pathfinding problem in which a robot travels from a start cell to a destination through open, blocked and charging cells, spending one battery unit per move and refilling at chargers. The best route is ranked by fewest charging stops, then smallest required battery capacity, then fewest moves.

  UberSoftware EngineerCoding & AlgorithmsOnsite
• Schedule Non-Overlapping Meetings EfficientlyHard

  This problem tests your ability to manage dynamic intervals and determine if a new meeting can be scheduled without overlapping existing appointments using efficient data structures.

  UberSoftware EngineerCoding & AlgorithmsOnsite
• Shortest Path in a Grid with Blocked CellsMedium

  This problem tests your ability to model a 2D grid as a graph and implement a Breadth-First Search (BFS) to find the shortest path between two points while respecting obstacles.

  UberSoftware EngineerCoding & AlgorithmsOnsite
• Simulate a Rank-Based TournamentMedium

  This question tests the ability to implement a single-elimination tournament simulation using queue-based structures and demonstrates competency in designing a relational database schema for tournament record-keeping.

  UberFrontend EngineerCoding & AlgorithmsTechnical Screen
• Simulate fixed-shape tiling on a gridMedium

  This question evaluates a candidate's ability to implement grid-based simulation and pattern-matching algorithms, including handling fixed-shape placements, internal holes, bounds checking, collision detection, and explicit scanning/tie-breaking rules.

  UberSoftware EngineerCoding & AlgorithmsOnline Assessment
• Simulate robot on grid with obstaclesMedium

  Simulate robot on grid with obstacles 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.

  UberSoftware EngineerCoding & AlgorithmsOnsite
• Smallest Palindromic Number Strictly Greater Than n, Up to 18 DigitsHard

  Given a positive integer of up to 18 digits as a string, return the smallest palindromic number strictly greater than it, or the input itself when no such palindrome stays within 18 digits. Tests digit-level reasoning and edge cases such as palindromic inputs, carries and changes in digit count.

  UberSoftware EngineerCoding & AlgorithmsTechnical Screen
• Solve 12 coding interview problemsMedium

  This multi-problem set evaluates broad algorithmic problem-solving skills, including bitwise reasoning, sliding-window and frequency analysis, stack/monotonic patterns, graph/DP reasoning with constrained jumps, and tree-path parity techniques.

  UberSoftware EngineerCoding & AlgorithmsOnline Assessment
• Solve BFS and grid tasksMedium

  This collection evaluates understanding of search techniques (binary search and BFS), graph and grid traversal, state-space shortest-path reasoning, randomized placement with adjacency counting, and attention to implementation quality and complexity trade-offs.

  UberSoftware EngineerCoding & AlgorithmsOnsite
• Solve Balanced Permutations and Tree ReversalsMedium

  This two-part prompt evaluates array and permutation reasoning for detecting contiguous value ranges and directed graph/tree reasoning for minimizing edge reversals when choosing a root, testing competencies in index and interval management, graph traversal and orientation, and algorithmic counting.

  UberSoftware EngineerCoding & AlgorithmsOnline Assessment
• Solve Knight and Reversal ProblemsHard

  This question evaluates graph modeling, state-space exploration, and shortest-path/reachability reasoning for nonstandard movement rules and constrained state transformations.

  UberSoftware EngineerCoding & AlgorithmsOnline Assessment
• Solve Prime Jumps and Pipeline ScalingMedium

  This question evaluates algorithmic problem-solving skills in constrained path optimization and resource-allocation throughput maximization, including concepts such as graph modelling with prime-step constraints, dynamic programming, number-theoretic reasoning, and combinatorial optimization.

  UberSoftware EngineerCoding & AlgorithmsTechnical Screen
• Solve Two OA Algorithm ProblemsHard

  This problem tests your ability to optimize resource allocation using a greedy approach with a priority queue and to determine graph reachability within a constrained network.

  UberSoftware EngineerCoding & AlgorithmsOnline Assessment
• Solve Wonderful Strings and Grid QueriesHard

  This problem tests your ability to optimize string transformations using bitmask dynamic programming and to perform efficient range-based queries on a grid using a 2D data structure or sweep-line approach.

  UberSoftware EngineerCoding & AlgorithmsTechnical Screen
• Solve jump maximization and palindromic path queriesHard

  This problem tests dynamic programming with array constraints and tree-based traversal combined with bitwise parity checks for palindromic properties.

  UberSoftware EngineerCoding & AlgorithmsOnline Assessment
• Solve stock profit and vertical tree traversalMedium

  Assesses proficiency in array processing and binary tree traversal algorithms—specifically single-pass analysis of time-series data and coordinate-based vertical ordering of tree nodes; Category: Coding & Algorithms; Level of abstraction: implementation-level algorithmic coding.

  UberSoftware EngineerCoding & AlgorithmsOnsite
• Solve two interview coding problemsMedium

  These two problems evaluate algorithmic problem-solving skills: the first focuses on spatial reasoning and grid-based distance computation relative to obstacles, while the second targets tree traversal and character-frequency reasoning for ancestor-path palindrome checks.

  UberSoftware EngineerCoding & AlgorithmsTechnical Screen
• Sort a Matrix into Snake Order Using Adjacent SwapsHard

  Construct any legal adjacent-swap sequence that sorts a numbered matrix into snake order, prove correctness, validate the output, and discuss reducing swap counts.

  UberSoftware EngineerCoding & AlgorithmsTechnical Screen
• Sort a String of Clothing SizesEasy

  This problem tests the ability to perform a custom sort on a constrained set of characters using an O(n) counting approach rather than a standard comparison-based O(n log n) sort.

  UberSoftware EngineerCoding & AlgorithmsTechnical Screen
• Sort by squares and find k-th smallestMedium

  This question evaluates array manipulation, ordering by derived keys (squares/absolute values), order-statistics reasoning, and algorithmic complexity analysis within the Coding & Algorithms domain.

  UberSoftware EngineerCoding & AlgorithmsTechnical Screen
• Track Customer Referral RevenueMedium

  This problem tests your ability to model a tree structure and maintain aggregated values across subtrees using recursion or iterative tree traversal.

  UberSoftware EngineerCoding & AlgorithmsTechnical Screen
• Largest Rider Group Where Every Rider's Companion-Count Limits HoldMedium

  A coding problem about forming the largest group of riders for a shared car, where each rider accepts only a minimum and maximum number of fellow passengers. It tests reasoning about per-rider interval constraints, careful handling of group-size edge cases, and meeting a linear-time requirement.

  Uber FreightSoftware EngineerCoding & AlgorithmsOnsite
• Compute Minimum L-Moves on Infinite GridMedium

  This interview question evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer for Compute Minimum L-Moves on Infinite Grid states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

  UiPathMachine Learning EngineerCoding & AlgorithmsTechnical Screen
• Compute longest distinct substring, case-insensitiveMedium

  This question evaluates competency in string processing, character normalization for case-insensitivity, algorithmic complexity analysis, and handling large-scale or streaming inputs.

  UiPathSoftware EngineerCoding & AlgorithmsTechnical Screen
• Implement cocktail shaker sort and analyzeMedium

  This question evaluates a candidate's understanding of sorting algorithms and algorithmic optimization, specifically implementation and enhancement of cocktail shaker sort, plus analysis of time and space complexity, stability, and counts of comparisons and swaps.

  UiPathMachine Learning EngineerCoding & AlgorithmsTechnical Screen
• Probability a draw-until-threshold score ends at or below a limitMedium

  A coding question on probability: a player repeatedly adds a uniformly random number of points until the total reaches a threshold, and you return the probability that the final total is at most a given limit. It tests careful probabilistic reasoning and an efficient computation for inputs up to ten thousand.

  UiPathMachine Learning EngineerCoding & AlgorithmsTechnical Screen
• Compute a Point Set's Bounding RectangleEasy

  This problem tests the ability to find the extrema of a coordinate set in a single linear pass to define an axis-aligned bounding box.

  UpstartSoftware EngineerCoding & AlgorithmsOnline Assessment
• Compute buffet revenue with capacity and waitingMedium

  This question evaluates event-driven simulation and state-management skills, including handling customer lifecycle, capacity constraints, FIFO queuing behavior, and revenue aggregation.

  UpstartSoftware EngineerCoding & AlgorithmsTechnical Screen
• Count Words in Lexicographic OrderMedium

  This problem tests your ability to efficiently process a collection of strings, count their occurrences using a hash map, and output them in a sorted format.

  UpstartSoftware EngineerCoding & AlgorithmsOnline Assessment
• Decode an anagram sentence using vocabulary constraintsMedium

  This question evaluates string manipulation, anagram detection, and constrained dictionary mapping skills, testing attention to character-level constraints and correct disambiguation among similar vocabulary entries.

  UpstartSoftware EngineerCoding & AlgorithmsTechnical Screen