Which of the following activities are performed by computer programmers? Choose all that apply. They write step-by-step instructions for a computer to follow. They produce a solution as quickly as possible, even it it means working from guesses at first. They define the programming language. They create a logic problem that the computer program can solve. Which of the following statements correctly describe a computer program? Choose all that apply. It is a set of step-by-step instructions. It is called code. It tells a computer exactly what to do. It is a set of directions to users on how to operate a computer.

Meenu wants to create a high quality drawing in a variety of colours. which device should she use for the same?

We as humans write math expression in infix notation, e.g. 5 + 2 (the operators are written in-between the operands). in a computer’s language, however, it is preferred to have the operators on the right side of the operands, i.e. 5 2 +. for more complex expressions that include parenthesis and multiple operators, a compiler has to convert the expression into postfix first and then evaluate the resulting postfix.write a program that takes an “infix” expression as input, uses stacks to convert it into postfix expression, and finally evaluates it. it must support the following operations: + - / * ^ % (example infix expression: (7 - 3) / (2 + 2)postfix expression: 7 3 - 2 2 + /result: 1guidelines: 1. you will need to use stacks in three placesa. one for the parenthesis check [char stack]b. one during infix to postfix [char stack]c. one during evaluation [int stack]for a and b above, you can use same array and same push, pop method as both ofthem are char. but for evaluation you have int stack and you might consider to createanother push pop method to handle it. maybe push_int, pop_int, etc. or find otherstrategy to utilize existing push pop method2. you can create a function for obtaining operator priority. that function should take anoperator as input and return its priority as an integer. this function will you a lot andreduce repeated code3. during evaluation you will need to convert char into integer. example for single digit: char c = '5'; int x = c - '0';

When copying and pasting text, the first step is move your cursor type the text select the copy command select the paste command