Secure Meters Embedded Software Developer Interview Questions, Process, and Tips

Short an array without using another array, with minimum parameters

• Use a sorting algorithm like bubble sort or insertion sort

• Iterate through the array and compare adjacent elements, swapping them if necessary

• Repeat the process until the array is sorted

There are 4 possible result cases when finding the maximum of three numbers.

• The maximum number is the same as the first number.

• The maximum number is the same as the second number.

• The maximum number is the same as the third number.

• The maximum number is different from all three numbers.

Optimization in C involves improving the efficiency and performance of code.

• Use efficient algorithms and data structures

• Minimize memory usage

• Avoid unnecessary function calls

• Optimize loops and conditionals

• Use compiler optimizations

• Profile and analyze code for bottlenecks

Code for bit set or reset

• To set a bit, use bitwise OR operator with 1 shifted left by the bit position

• To reset a bit, use bitwise AND operator with the complement of 1 shifted left by the bit position

• Use unsigned integer data type for bit manipulation