Mirafra Technologies Software Engineer Interview Questions and Answers

C programming : String and DS

Q1. Basic c concepts, DS program, Embedded related questions.
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Q2. 1) What is Pointer use of it 2) Reverse Link list 3) String concatenation 4) Communication protocols i2c v/s SPI 5) IPC mechanism 6) Dynamic memory allocation related questions
Ans. 
Pointer is a variable that stores the memory address of another variable. Used for dynamic memory allocation and accessing data structures.
• Pointers are used to access and manipulate memory addresses directly.

• Example: int *ptr; ptr = # *ptr = 10; // num now equals 10

• Reverse Link list: Reverses the order of nodes in a linked list.

• String concatenation: Combining two or more strings into a single string.

• Communication p...read more
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Q1. General question
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Q2. Tell me about yourself. Long tern goal Your strong points
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Round duration - 140 minutes
Round difficulty - Medium

Test timing was at 2:00 pm , it was conducted in a college and the environment was good for the test. Camera was a primary part of test, so no suspicious activity.

Q1. 
Sum of Two Numbers Represented as Arrays
Given two numbers in the form of two arrays where each element of the array represents a digit, calculate the sum of these two numbers and return this sum as an ar...read more
Ans. 
Given two numbers represented as arrays, calculate their sum and return the result as an array.
• Iterate through the arrays from right to left, adding digits and carrying over if necessary

• Handle cases where one array is longer than the other by considering the remaining digits

• Ensure the final sum array does not have any leading zeros
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Round duration - 20 minutes
Round difficulty - Easy

The round was conducted at around 12 p.m. I was called at the college location and then it was conducted. The interviewer was quite polite and frank.

Round duration - 8 minutes
Round difficulty - Easy

This round was conducted right after finishing and clearing the technical round at the same place and on the same day.