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Cadence Placement Papers 2024

Overview

This page collects Cadence placement papers from 2024 with practice questions, worked solutions, and the exam pattern students reported that cycle. Use it when you want drive history: what the first round looked like, which topics repeated, and how to approach solutions. Work the sets below under a timer, then compare with newer material so your prep matches both established Cadence patterns and recent shifts.

Cadence Aptitude Mock Quiz

Timed placement-style MCQs with score and explanations after you submit. Use it to check speed and accuracy before the real test.

Questions15
Time10 min

Cadence exam pattern 2024

Section What shows up Prep focus
Online assessment Coding and/or MCQ filter Weekly timed mocks
Technical rounds DSA, CS fundamentals, projects Live problem solving
HR / hiring manager Motivation and communication Specific, evidence-based answers

First round: Cadence Online Assessment
Skills emphasized: DSA, algorithms, C++, digital fundamentals
Languages: C++, Python

Sample Cadence questions with solutions

These are practice-style questions aligned to patterns students report for Cadence drives around 2024. They are not leaked live papers. Work them timed, then read the solutions only after you have an answer.

Quantitative aptitude (2024)

Q1: A and B together

Problem: A can finish a job in 10 days and B in 20 days. How long will they take working together?

Solution: A’s one-day work = 1/10. B’s one-day work = 1/20. Together = 1/10 + 1/20 = 3/20 per day. Time = 20/3 ≈ 6.67 days (6 days 16 hours).

Answer: 20/3 days

Q2: Sum of naturals

Problem: What is the sum of the first 50 natural numbers?

Solution: Sum of first n naturals = n(n+1)/2. For n = 50: 50 × 51 / 2 = 1275.

Answer: 1275

Q3: Average speed

Problem: A person covers a distance at 60 km/h and returns at 40 km/h. What is the average speed for the whole trip?

Solution: For equal distances, average speed = 2ab/(a+b). = 2×60×40 / (60+40) = 4800/100 = 48 km/h.

Do not take the arithmetic mean (50); that would be wrong here.

Answer: 48 km/h

Q4: Marked price discount

Problem: A shopkeeper marks goods 20% above cost and then gives a 10% discount. What is the profit percentage?

Solution: Let CP = ₹100. Marked price = ₹120. Discount = 10% of 120 = ₹12. SP = 120 − 12 = ₹108. Profit % = 8%.

Answer: 8%

Q5: Three workers

Problem: A finishes work in 12 days, B in 15 days, and C in 20 days. Working together, how many days do they need?

Solution: Take total work = LCM(12,15,20) = 60 units. A = 5/day, B = 4/day, C = 3/day. Combined = 12 units/day. Time = 60/12 = 5 days.

Answer: 5 days

Q6: Age ratio

Problem: The ratio of ages of A and B is 3:5. After 8 years the ratio becomes 5:7. Find A’s present age.

Solution: Let ages be 3x and 5x. (3x+8)/(5x+8) = 5/7 7(3x+8) = 5(5x+8) 21x + 56 = 25x + 40 4x = 16 → x = 4 A’s age = 12 years.

Answer: 12 years

Q7: Pipe fill

Problem: Pipe A fills a tank in 6 hours and pipe B in 8 hours. How long do they take together to fill it?

Solution: Combined rate = 1/6 + 1/8 = 4/24 + 3/24 = 7/24. Time = 24/7 hours ≈ 3 hours 26 minutes.

Answer: 24/7 hours

Q8: Simple interest

Problem: Find the simple interest on ₹8000 at 10% per annum for 2 years.

Solution: SI = (P × R × T) / 100 = (8000 × 10 × 2) / 100 = ₹1600.

Answer: ₹1600

Coding practice (2024)

Coding Q1: Binary search

Problem: Given a sorted array of distinct integers and a target, return the index of target or -1 if missing.

Approach: Maintain lo/hi. Compare mid with target and shrink the half that cannot contain it. Careful with overflow-free mid and empty arrays.

Complexity: O(log n) time

Cadence tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q2: Move zeros

Problem: Move all zeros in an array to the end while keeping the relative order of non-zero elements.

Approach: Two pointers: write non-zeros toward the front, then fill the remainder with zeros. Or swap zeros as you scan.

Complexity: O(n) time, O(1) space

Cadence tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q3: Rotate array

Problem: Rotate an array to the right by k steps. Example: [1,2,3,4,5,6,7], k = 3 → [5,6,7,1,2,3,4].

Approach: Normalize k %= n. Reverse the whole array, reverse the first k elements, then reverse the rest. That yields the rotation in place.

Complexity: O(n) time, O(1) space

Cadence tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q4: First unique character

Problem: Find the first non-repeating character in a string and return its index, or -1 if none exists.

Approach: Count frequencies in one pass (hash map or array of 26 for lowercase). Second pass returns the first index with count 1.

Complexity: O(n) time

Cadence tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q5: Stack with min

Problem: Design a stack that supports push, pop, top, and getMin in average O(1) time.

Approach: Keep a parallel min-stack (or store pairs). When pushing, also push the new minimum. When popping, pop both stacks.

Complexity: O(1) per operation amortized

Cadence tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q6: Maximum subarray sum (Kadane)

Problem: Given an integer array, find the contiguous subarray with the largest sum and return that sum. Example: [-2,1,-3,4,-1,2,1,-5,4] → 6 (from [4,-1,2,1]).

Approach: Keep a running sum. If the running sum drops below 0, reset it to 0 before taking the next element (or track the best ending-here value). Track the global maximum as you scan once from left to right.

Complexity: O(n) time, O(1) extra space

Cadence tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q7: Reverse a string in place

Problem: Given a mutable character array representing a string, reverse it in place without allocating another array of the same size.

Approach: Use two pointers at the start and end. Swap characters, then move inward until the pointers meet. Watch empty and single-character inputs.

Complexity: O(n) time, O(1) extra space

Cadence tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q8: Check prime

Problem: Write a function that returns true if n is prime and false otherwise. Handle n < 2 correctly.

Approach: Return false for n < 2. Trial-divide from 2 to floor(sqrt(n)). If any divisor divides n evenly, it is composite; otherwise prime.

Complexity: O(√n) time

Cadence tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Deep prep notes for Cadence

How the Cadence Online Assessment usually feels

Students usually say the first round is time-tight - easy marks vanish if you sit too long on one hard question. For Cadence, skim the paper in a couple of minutes, mark what you can finish cleanly, and protect accuracy. Languages people commonly use: C++, Python.

Topic weight hints

Area Why it matters at Cadence
DSA What usually helps you clear the first round
Core CS (OOPs / DBMS / OS) Technical interview depth
EDA, Computational Software awareness Helps in managerial / HR conversations
Communication Explain your approach clearly; keep a few real examples ready for HR

14-Day sprint

  1. Days 1-3: Learn the 2024 pattern and take two sectional mocks
  2. Days 4-7: Closed practice on weak topics from your error log
  3. Days 8-10: Full mocks every other day; review the same day
  4. Days 11-14: Practice explaining projects out loud, light revision, sleep and IDs ready

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