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Ittiam Systems Interview Questions and Answers
21 Interview questions
Separate positive and negative numbers in an array without sorting them.
Use two pointers: one for positive and one for negative numbers.
Iterate through the array and place negative numbers at the beginning.
Example: For array [-1, 2, -3, 4], result should be [-1, -3, 2, 4].
Maintain the order of appearance for both positive and negative numbers.
An octa-core processor is a CPU that has eight cores, allowing it to handle multiple tasks simultaneously for improved performance.
An octa-core processor has eight processing cores, which can work together to execute tasks faster and more efficiently.
It is commonly found in high-end smartphones, tablets, and computers to provide better multitasking capabilities.
Each core can handle its own tasks independently, lea...
Algorithm to reverse a string
Create an empty string to store the reversed string
Loop through the original string from the end to the beginning
Add each character to the new string
Return the new string
Find the minimum number whose product of digits modulo 1000000007 is equal to itself.
Iterate through numbers from 1 to 1000000006
Calculate the product of digits modulo 1000000007 for each number
If the product is equal to the number, return the number as the minimum
If no such number is found, return -1
No, incrementing a void pointer is not allowed.
Void pointers do not have a data type, so incrementing them is not possible.
Attempting to increment a void pointer will result in a compilation error.
To increment a pointer, it must be of a specific data type.
Implementing memcopy in C
Use a loop to copy each byte from the source to the destination
Handle overlapping memory regions correctly
Return a pointer to the destination
Ensure proper null termination for string copies
Program to invert all bits from the leftmost set bit in an integer
Find the leftmost set bit using bitwise operations
Create a mask with all bits set to 1 from the leftmost set bit
XOR the mask with the integer to invert all bits from the leftmost set bit
Repeat the above steps until all bits are inverted
Program to invert the case of the last letter in each word of a sentence
Split the sentence into an array of words
Loop through each word and get the last letter
Invert the case of the last letter using toUpperCase() and toLowerCase()
Replace the last letter in the word with the inverted case letter
Join the array of words back into a sentence
Program to find the number of trailing zeros in a factorial
Count the number of 5s in the factorial
Divide the number by 5 and add the quotient to the answer
Repeat until quotient is less than 5
Design a data structure for dictionary
Use hash table or trie data structure
Each key maps to a value
Keys should be unique
Support operations like insert, delete, search
Ittiam Systems Interview Experiences
15 interviews found
Anonymous
Interview Questionnaire
12 Questions
- Q1. Reverse an array inplace. -4 input AND gate using 2 input AND gates.give 2 ways and compare both.how will you identify which is better if both are given in a black box. -swap elements without using temp,in...
- Ans.
Questions on array manipulation and logic gates.
To reverse an array inplace, swap the first and last elements and continue swapping towards the middle.
To implement a -4 input AND gate using 2 input AND gates, use two 2-input AND gates and connect their outputs to a third 2-input AND gate.
To compare two black box implementations of an AND gate, test their output for all possible input combinations and compare the result...
- Q2. -AND gate using multiplexer
- Ans.
AND gate can be implemented using a 2:1 multiplexer.
Connect both inputs of the AND gate to the select line of the multiplexer.
Connect one input of the multiplexer to 0 and the other input to the second input of the AND gate.
The output of the multiplexer is the output of the AND gate.
- Q3. -calculation of stack space used by a combination of functions and which used for storage of different data types
- Ans.
To calculate stack space used by functions and data types, we need to consider their sizes and memory allocation.
Calculate the size of each data type used in the functions
Determine the number of variables declared in each function
Multiply the size of each variable by the number of times it is declared
Add up the total size of all variables in each function
Add the sizes of all functions together to get the total stack sp...
- Q4. Threads and processes
- Q5. Copyfunc(char* source,char* destination,int length) - write a copy function...give test cases
- Ans.
Implement a function to copy a specified number of characters from a source string to a destination string.
Use a loop to copy each character from source to destination.
Ensure to handle cases where length exceeds the source string length.
Null-terminate the destination string after copying.
Example: copyfunc('Hello', dest, 5) results in dest = 'Hello'.
Example: copyfunc('Hello', dest, 10) results in dest = 'Hello' with nul...
- Q6. -if you have to AND n inputs,how many AND gates will be required? (I said n-1 and he asked me to prove it mathematically)
- Ans.
To AND n inputs, n-1 AND gates are required.
Each input needs to be connected to an AND gate except for the last input which is connected to the output.
The output of each AND gate is connected to the input of the next AND gate.
This results in n-1 AND gates being required for n inputs.
- Q7. Func(char a,int bit_postion) - func shud reset the bit at position bit_position in char a and return character
- Ans.
The function resets a specific bit in a character and returns the modified character.
Use bitwise AND with a mask to reset the bit.
Create a mask by shifting 1 left by bit_position and then negating it.
Example: To reset bit 2 in 'a' (binary 01100001), use ~(1 << 2).
Return the modified character after resetting the bit.
- Q8. What is stack? Where is it used? (i said function calls) What exactly happens in function calls?
- Ans.
Stack is a data structure used to store and manage function calls.
Stack is a LIFO (Last In First Out) data structure.
It is used to store function calls, local variables, and return addresses.
Pushing onto the stack adds a new element to the top, popping removes the top element.
Stack overflow occurs when the stack size exceeds its limit.
Example: recursive function calls use the stack to store return addresses and local v...
- Q9. Where do local variables go? Why is stack used for function calls? Can you perform arithmetic operations directly on data stored in stacks?
- Ans.
Local variables go on the stack. Stack is used for function calls due to its LIFO nature. Arithmetic operations can be performed on stack data.
Local variables are stored on the stack frame of the function they are declared in.
Stack is used for function calls because it allows for easy management of function call frames in a LIFO manner.
Arithmetic operations can be performed on data stored in the stack by first popping ...
- Q10. You are given a 32 bit no. two bit positions say m and n are given. extract the pattern between m and n. e.g. 01100111110001011100100101011111 m=10,n=20; from m to n i have "...
- Ans.
Extract a pattern between two given bit positions in a 32-bit number.
Convert the number to binary string.
Extract the substring between the given positions.
Convert the substring back to decimal if needed.
Handle edge cases like invalid positions or overlapping positions.
- Q11. Find the transpose of a 2*2 square matrix(in place)
- Ans.
Transpose a 2*2 square matrix in place
Swap the elements at (0,1) and (1,0) indices
No need to swap elements at (0,0) and (1,1) indices
Example: [[1,2],[3,4]] -> [[1,3],[2,4]]
- Q12. -ittiam is just 10-11 yrs old,what do you know about it and why do you want to join it?
- Ans.
Ittiam is a 10-11 year old software company.
Ittiam specializes in video and audio codecs.
It has a strong presence in the semiconductor industry.
It has partnerships with major players like Intel, Qualcomm, and Sony.
I want to join Ittiam because of its innovative work and growth potential.
Interview Preparation Tips
Experience:
c,dlda,dsp......unsigned characters,function pointers,time and space used by different functions performing the same task and several unconventional things were asked.
:14 shortlisted after apti
Round: Technical Interview
Experience: a few questions to check your creativity(only 30 sec given to solve)viz...convert roman 9(IX) to six.
-mostly he spoke on what should i do......i came across as a very strong person who is very insecured and wants to do everything better than others...he made me realise that its not possible.no one has enough skills for that....enjoy your life.dont sulk and take too much pressure
do something because you like to do it and not for any competition(not even with yourself).
-
Tips: (dos and donts)
-common interview related questions definitely help.find them on internet.
-only c is sufficient but not the marks oriented c that we did in 1st sem.
-a completely different side of c where things we generally dont use or bother about is asked.
like unsigned nos,program stack space,function ptrs,etc.
its very important to clear apti first,which is COMPLETELY different from interviews and definitely more difficult.
do try to think loud during interviews and make them stop you if you r thinking in wrong direction.
-at the end,IT HAS TO BE YOUR DAY
College Name: Veermata Jijabai Technological Institute, Mumbai [ VJTI ]
Skills evaluated in this interview
I applied via Campus Placement and was interviewed in Aug 2024. There were 2 interview rounds.
Generally quant based
(2 Questions)
- Q1. What is octa core processor
- Ans.
An octa-core processor is a CPU that has eight cores, allowing it to handle multiple tasks simultaneously for improved performance.
An octa-core processor has eight processing cores, which can work together to execute tasks faster and more efficiently.
It is commonly found in high-end smartphones, tablets, and computers to provide better multitasking capabilities.
Each core can handle its own tasks independently, leading ...
- Q2. Questions on bit manipulations
Interview Preparation Tips
Skills evaluated in this interview
I applied via Referral and was interviewed in Nov 2024. There were 2 interview rounds.
C questions were asked
(1 Question)
- Q1. Ant triangle problem and dynamic programming knapsack
Selected
I applied via Referral
(1 Question)
- Q1. OOPS C and C++ Code analysis (debugging)
(1 Question)
- Q1. Data structures Algorithm Puzzles Security vulnerability Memory mapping
Interview Preparation Tips
Omkar Potadar
Selected
I applied via Referral
(1 Question)
- Q1. OOPS C and C++ Code analysis (debugging)
(1 Question)
- Q1. Data structures Algorithm Puzzles Security vulnerability Memory mapping
Interview Preparation Tips
Selected
I applied via Approached by Company and was interviewed in Aug 2023. There were 3 interview rounds.
(1 Question)
- Q1. Technology mentioned on resume, Coding questions
(1 Question)
- Q1. Generic HR question like why do you want to work here? why should we hire you? what is more important money or work?
Pratiksha Hegde
Selected
I appeared for an interview before Jun 2024, where I was asked the following questions.
- Q1. Separate negative and positive numbers without sorting
- Ans.
Separate positive and negative numbers in an array without sorting them.
Use two pointers: one for positive and one for negative numbers.
Iterate through the array and place negative numbers at the beginning.
Example: For array [-1, 2, -3, 4], result should be [-1, -3, 2, 4].
Maintain the order of appearance for both positive and negative numbers.
- Q2. Basic questions on trees
I applied via LinkedIn and was interviewed in Sep 2022. There were 3 interview rounds.
Basic questions verbal os apti
(2 Questions)
- Q1. Bacis of c DSA DBMS OS aray questions Tel me about your self What is volatile keyword What is data Difference between aray and DBMS
- Q2. Reverse the string and write algorithm
- Ans.
Algorithm to reverse a string
Create an empty string to store the reversed string
Loop through the original string from the end to the beginning
Add each character to the new string
Return the new string
Interview Preparation Tips
- C
- DSA
Skills evaluated in this interview
I applied via Campus Placement and was interviewed in Mar 2018. There were 3 interview rounds.
Interview Questionnaire
6 Questions
- Q1. Gave a form to fill up with HR questions in it.
- Q2. HR - Why your pointer is so low? Me - (Pointer - 7.4, Eligibility criteria - 7) Sir, I am an active member of the college... HR - (Cutting in the middle, asking rudely) You came here for studies or for co-...
- Ans.
The candidate explains their low pointer by highlighting their active involvement in co-curricular activities and their focus on overall development.
Active involvement in college co-curricular activities
Emphasis on overall development
Belief that knowledge is more important than grades
- Q3. HR - Why do you want to join ITTIAM? Me - Sir, as I have searched the web, and read the reviews about ITTIAM, one thing is mentioned in almost every review, that you will get the opportunity to learn there...
- Q4. HR - (Now just only shouting at me) Who told you that this is a technical interview? This is just an interview, you just came here with an assumption. Me - You came here for the recruitment of technical po...
- Q5. Me - Yes Sir, Many do the jobs of designing of protocols, they work on algorithms. HR - You don't know anything about networking, you just know the technology, you don't have deep knowledge. Technical Pers...
- Q6. HR - (Nodded in disagreement) You know C/C++ right? (Looking at my resume)Can we ask him a quick question in which he won't take much time answering? (Asked the Technical Person) If he answers it correctly...
Interview Preparation Tips
Extremely Rude HR with very unprofessional behaviour.
No screening called everybody for the interview, Whosoever filled the form
It is a startup from 2001 which have only 250 employees till 2018, don't join this company unless that's your only option. No growth in the company
Interview Preparation Tips
Experience: Questions asked in the test : Core
Tips: Preparations for the test : Study materials
Duration: 60 minutes
Round: Interview
Experience: HR was more elaborate than the technical.... They make sure the candidate has the right kind of attitude to work with them. It was more like psychological test.The HR interview is very unique.
Round: Interview
Tips: Good hold on subjects
Skill Tips: It will be good if you prepare well in all subjects which you may be expecting... I stuck to a single profile (my core area) so it was bit easier for me.
In wireless communication learn about OFDM,CDMA.
Skills: DSP, Digital Communications, Wireless Communication, C programming
College Name: IIT MADRAS
Interview Preparation Tips
Experience: I had a resume as per the standards laid down by our placement cell. The company did not look at the resume I had with me and it was just a formality.
Round: Test
Experience: The written test had questions on C programming. The topics from C were basically related to pointers, operators and functions. The paper also had questions from Digital Electronics. These were mostly from chips and registers. There was another section for Aptitude also in the test. There were questions from simple electronics as well but I had no idea about them. The duration of the test was around 1 hour.
Tips: For Written test i would recommend ‘C by Yashwant Kanetkar’ and the book by Salle Mahanand for Digital Electronics.
Round: Technical Interview
Experience: The first interview was a technical interview. The whole interview revolved around the concept of Bit wise operator which is a concept in C. They also asked me questions on Digital electronics which were mainly based on the layout of NAND, AND, OR Gates. They were not sure about my proficiency in C so they also asked me to code some simple problems in C. The technical interview lasted pretty long.
Round: HR Interview
Experience: The second round was an HR Interview. It was simply a formality for those who had performed well in the technical interview. They asked me general questions about the talk they had given as well as they enquired about me and my family background.
Tips: The company looks for people who are proficient in C. So, in depth knowledge of the language is needed before the interview.
College Name: SGSITS INDORE
Motivation: For ITTIAM solutions I read about the technology it works in which is embedded software, Smart Phones and Protection of IC. I also consulted my seniors and people who work in ITTIAM solution to get more insight about the company profile.
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