MNC AUTOMATION Assistant Officer Interview Questions and Answers

A stack is a data structure that follows the Last In First Out (LIFO) principle, while a queue follows the First In First Out (FIFO) principle.

• Stack: Used in undo functionality in text editors. Example: Ctrl + Z in Microsoft Word.

• Queue: Used in a printer queue where the first document to be printed is the one that was sent first.

• Stack: Elements are added and removed from the top of the stack.

• Queue: Elements are added at the rear and removed from the front of the queue.

Calculate the amount of water trapped in an elevation map

• Iterate through the array to find the maximum height on the left and right of each bar

• Calculate the water trapped at each bar by finding the minimum of the maximum heights on left and right minus the current height

• Sum up the water trapped at each bar to get the total amount of water trapped

To compute the amount of water trapped in an elevation map after raining, iterate through the array and calculate the trapped water on each bar.

• Iterate through the array to find the maximum height on the left and right of each bar

• Calculate the amount of water trapped on each bar using the difference between the minimum of the two maximum heights and the height of the bar

• Add up the amount of water trapped on each bar to get the total amount of water trapped

Compiler processes entire program code at once, while interpreter processes code line by line.

• Compiler translates the entire source code into machine code before execution

• Interpreter translates and executes code line by line

• Examples of compilers: GCC, Clang

• Examples of interpreters: Python, Ruby

A compiler translates the entire program at once and generates an executable file, while an interpreter translates the program line by line and executes it immediately.

• Compiler translates the entire program before execution, while interpreter translates and executes line by line.

• Compiler generates an executable file, while interpreter does not.

• Compiler is faster in execution as it translates the code only once, while interpreter may be slower as it translates each line during...read more