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SourCaPlacement OS

Targeted Campus Assessment Prep

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Retrieving topic-wise placement question bank & difficulty tags

SourCaPlacement OS

Targeted Campus Assessment Prep

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Synchronizing placement benchmarks & campus recruitment roadmaps

Topic-Wise Practice

Build Your Skills by Topic

Work through curated practice sets across DSA, SQL, quantitative aptitude, and core computing concepts at your own pace.

Interactive Games Speed Sprints Explore by Company

DSA & Problem Solving2 Qs

Core algorithms and data structures commonly tested in placement online assessments.

3 topicsExplore →

SQL & Databases2 Qs

Relational database queries, aggregations, window functions, and real-world data schemas.

2 topicsExplore →

Quantitative Aptitude1 Qs

Mathematical problem-solving topics essential for standard company cognitive screening rounds.

1 topicsExplore →

Logical Reasoning & Puzzles50 Qs

Deductive reasoning, pattern analysis, series, and puzzle-solving tracks.

1 topicsExplore →

Web & Core Fundamentals1 Qs

Operating Systems, Computer Networks, DBMS, and Web development concepts.

1 topicsExplore →

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Question Catalog

Showing 1–20 of 622 questions

Find First and Last Position of Element in Sorted Array

DSA & Problem Solving•Arrays & Two Pointers•codingmedium

•AccentureTcs Nqt+3

Second Highest Salary from Employees Table

SQL & Databases•JOINs & Subqueries•sqlmedium

•AmazonOracle+8

Predict Output of Async/Await with Microtask Queue

Web & Core Fundamentals•JavaScript Output & Scope•outputhard

Two Trains Moving in Opposite Directions: Relative Speed Problem

Quantitative Aptitude•Time, Speed & Distance•mcqeasy

•Tcs NqtInfosys+7

Detect Cycle in a Directed Graph

DSA & Problem Solving•Trees & Binary Search Trees•codinghard

•InfosysAmazon+3

Calculate Cumulative Monthly Revenue using Window Function

SQL & Databases•Window Functions•sqlhard

•DeloittePwc+6

Two Sum Target Indices

DSA & Problem Solving•Arrays & Hash Maps•codingeasy

•AccentureTcs Nqt+13

Maximum Subarray Sum (Kadane's)

DSA & Problem Solving•Arrays & Dynamic Programming•codingmedium

•MicrosoftTcs Nqt+10

Longest Substring Without Repeating Characters

DSA & Problem Solving•Sliding Window & Hash Sets•codingmedium

•AmazonCisco+10

Trapping Rain Water

DSA & Problem Solving•Two Pointers & Monotonic Arrays•codinghard

•GoogleAmazon+8

Binary Tree Level Order Traversal

DSA & Problem Solving•Trees & Breadth First Search•codingmedium

•AdobeCisco+8

Valid Parentheses & Bracket Matching

DSA & Problem Solving•Stacks & String Parsing•codingeasy

•Cognizant GencTcs Nqt+10

Coin Change (Minimum Coins)

DSA & Problem Solving•Dynamic Programming•codingmedium

•AmazonFlipkart+8

Merge Two Sorted Lists

DSA & Problem Solving•Linked Lists & Two Pointers•codingeasy

•Tcs NqtInfosys+9

Course Schedule & Cycle Detection (Topological Sort)

DSA & Problem Solving•Graphs & Topological Sort•codingmedium

•AmazonGoogle+8

Single Number (XOR Bit Manipulation)

DSA & Problem Solving•Bit Manipulation•codingeasy

•QualcommNvidia+8

Best Time to Buy and Sell Stock

DSA & Problem Solving•Arrays & Dynamic Programming•codingeasy

•AmazonTcs Nqt+8

Invert Binary Tree

DSA & Problem Solving•Binary Trees & Recursion•codingeasy

•GoogleMicrosoft+7

Climbing Stairs (Distinct Step Combinations)

DSA & Problem Solving•Dynamic Programming•codingeasy

•Tcs NqtInfosys+8

Search in Rotated Sorted Array

DSA & Problem Solving•Binary Search•codingmedium

•AmazonGoogle+7

Showing 1–20 of 622 questions

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