C++: Create a Dynamic 2D Array Class. This class should overload the Call Operat

Question

C++:

Create a Dynamic 2D Array Class. This class should overload the Call Operator () for the following behaviors:

Return (modifiable) Lvalue element for a non-const object

Return (read-only) Rvalue element for a const object

Return a copy of the data values for row

Return a copy of all the data as a 1D vector

Create a TestScores Class which uses a Dynamic 2D Array object as an internal data structure. This class should have the following behaviors:

Get the scores for a given student

Get the average score for a given student

Get the class average

Get the Standard Deviation for the class

Create a BandPassFilter which allow only scores within One-Sigma to pass through. Answer the questions:

How many scores passed through?

What percentage is this?

How does this compare to a Normal Distribution?

Demonstrate your classes with a TestScores Object which has 15 students with five(5) test scores each. Generate scores between 45 and 100 using a Random Generator.

Explanation / Answer

class Array2DWrapper { int *ptr; public: Array2DWrapper(int *ptr) : ptr(ptr) {} int * operator[](int i) { return ptr + i*N; } }; // USAGE: void exampleFunction(int *arrPtr) { Array2DWrapper arr { arrPtr }; ... arr[i][j]; ... } class Array2DWrapperDynamicN { int *ptr; int N; public: Array2DWrapper(int *ptr, int N) : ptr(ptr), N(N) {} int * operator[](int i) { return ptr + i*N; } }; class Array2DWrapperDynamicN { int *ptr; int N; public: Array2DWrapper(int *ptr, int N) : ptr(ptr), N(N) {} int * operator[](int i) { return ptr + i*N; } };

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