Write a function: int calculate(int x); In c++, the function returns value of 3*x^3 + 3*x^2- 2.

C++ Write a void function that has two parameters: a value parameter called num that receives a floating point number from the calling function and a floating point reference parameter called result. The functions should do this calculation: 25.0 * num + 37 and store the answer in result. Do not do any read or write operations in the function.

in C++

in c++

Programming technique exercise Question 1). Write a complete C++ program that helps the teacher to calculate the result of students in the test of Programming Technique. The program should perform the following tasks: • Write a function named getinput. This is a non-returning function. It takes the score of question 1, score of question 2, and score of question 3 as input parameters. the function should ask the user to enter the score (per 100) for each question. It sends all the values entered by the user in (c) back to the calling module through the use of reference parameters. • Write a function named dispTier. This is a non-returning function. It takes the total marks as an input parameter. The function should display the tier based on the conditions. Tier 3 = below 40%, tier 2 = below75%, tier 1=75% and above • Write a function named calcAverage. I It takes the number of students and total marks as input parameters.

in c++ write a code to return the value of fake coin, the fake coin is The different element of the value in the array ،and need for way solution using 1) brute force approaches 2) divide and conquer 3) decrease and conquer 4) transform and conquer and write the time of each one and what the best time of them.   in c++ write a code to return the value of fake coin, the fake coin is The different element of the value in the array and be less value (minimum) , need four way solution using 1) brute force approaches   2)divide and conquer   3)decrease and conquer 4) transform and conquer   and write the time of each one and what the best time of them.