(a). A programmer at SoftTribe has declared a three-dimensional array BRUT in a programming language using BRUT[2:11, -4:9, 5:12] (i). Describe (without calculating) how he will:
(α). find the lengths of the three dimensions of BRUT
(β). find the number of elements in BRUT.
(ii). Give and explain a practical example in a university management system where a three-dimensional array could be used.
(b). People often use recursive algorithms. Discuss the difference between direct recursion and indirect
recursion. In which situations would a direct or indirect recursion be a better choice to use?
(c). Two Level 200 IT students, James and Morris, are discussing how to compare two algorithms for solving a given problem. James suggests that they should use the execution times of the algorithms as criterion; but Morris insists that they should use the
number of statements the algorithms execute as criterion.
(i). Explain the reasons why both criteria they are considering are not good for comparing algorithms.
(ii). Recommend an ideal solution/criterion that they should rather use for comparing algorithms.
Give a practical example to illustrate your answer.

To hide gridline when you display or print a worksheet

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';

Jason works as an accountant in a department store. he needs to keep a daily record of all the invoices issued by the store. which file naming convention would him the most?