Qualcomm interview experience Real time questions & tips from candidates to crack your interview
Software Engineer
Qualcomm
4 rounds | 2 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 1 month
Topics: C, Python, Data structures, Operating System, Computer Networks, Algorithms, Computer Organisation
Tip 1 : Practiced coding problems from InterviewBit and GeeksforGeeks.
Tip 2 : Problem solving and mock interviews with friends helped a lot
Application process
Where: Campus
Eligibility: Above 7 CGPA
Tip 1 : Try to make your resume ATS compliant (to know more search "ats compliant resumes"
Tip 2 : You don't need to mention details like parents name, address, etc. Companies are looking for the skill. Hence mention the projects, courses, interests/ hobbies.
Interview rounds
01
Round
Medium
Online Coding Interview
Duration90 Minutes
Interview date20 Jul 2021
Coding problem0
Total 60 MCQs
Section 1- Aptitude - Basic aptitude questions studied for GATE. It also included DI/LR and passage based questions.
Section 2- Questions from OS, CN, DBMS and DS were asked. Questions like height of tree, binary search tree, Balance value of avl tree node, min heap, Turn around time/ avg waiting time in scheduling algo.
Section 3 - C Programming questions based on pointers, storage classes, input-output, static variables
02
Round
Medium
Video Call
Duration60 Minutes
Interview date22 Jul 2021
Coding problem1
Timing - At around 10AM.
Questions that were asked-
- Introduction, followed by work done in the company.
- OS questions based on Mutex, Semaphore, difference between them and deadlocks
- Puzzle question - Given 3 jugs - 3, 5 and 8 litres with 8 litres filled with water, divide into 4 litres.
1. Count Set Bits
Hard
15m average time
85% success
0/120
Asked in companies
You are given a positive integer ‘N’. Your task is to find the total number of ‘1’ in the binary representation of all the numbers from 1 to N.
Since the count of ‘1’ can be huge, you are required to return it modulo 1e9+7.
Note:
Do not print anything, just return the number of set bits in the binary representation of all integers between 1 and ‘N’.
03
Round
Medium
Video Call
Duration60 Minutes
Interview date20 Jul 2021
Coding problem1
- Introduction and previous work
- OS based questions on scheduling algo, mutex , semaphore. Also wanted to know about
Peterson's solution.
1. Division By Four
Easy
15m average time
90% success
0/40
Asked in company
You are given an array/list, 'arr’ of size ‘N’ update each element of the array by the value obtained by dividing the element by 4 (take only integer part). If the value obtained by dividing element by 4 comes out to be 0, then update the element with value -1.
Note:
Do not return or print the array and make changes in the same array.
Example:
Let the array be [1,32,4], after dividing each number by 4 our array will become [0, 8, 1].
Now replace the 0 by -1 so that [0, 8, 1] -> [-1, 8, 1].
Hence the modified array will be [-1, 8, 1].
04
Round
Easy
HR Round
Duration10 minutes
Interview date20 Jul 2021
Coding problem0
To confirm about the team location, work, company etc. What are your hobbies?. Why do you want to join us?
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
How do you remove whitespace from the start of a string?
Choose another skill to practice
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