Problem Scenario 1. You need to calculate the percentage of marks obtained in three subjects (100 being the highest for each subject) by Student A and the percentage of marks obtained in four subjects (100 being the highest for each subject) by Student B. Create an abstract class "Marks" with an abstract method "getPercentage" 2. 3. This abstract class is inherited by two other classes "StudentA" and "StudentB" 4. Each class (StudentA, StudentB) will have a method with the same name which returns the percentage of the students 5. The constructor of StudentA takes the marks in three subjects as its parameters 6. The constructor of StudentB takes the marks in four subjects as its parameters 7. Create an object of each of the two classes and print the percentage of marks for both the

Consider the following skeletal C program: void fun1(void); /* prototype */void fun2(void); /* prototype */void fun3(void); /* prototype */void main() { int a, b, c; . . .}void fun1(void) { int b, c, d; . . .}void fun2(void) { int c, d, e; . . .}void fun3(void) { int d, e, f; . . .}Given the following calling sequences and assuming that dynamic scoping is used, whatvariables are visible during the execution of the last function? Include with each visible variablethe name of the function in which it was defined.a. main calls fun1; fun1 calls fun2; fun2 calls fun3.b. main calls fun1; fun1 calls fun3.c. main calls fun2; fun2 calls fun3; fun3 calls fun1.d. main calls fun3; fun3 calls fun1.e. main calls fun1; fun1 calls fun3; fun3 calls fun2.     Consider the following program, written in JavaScript-like syntax: // main programvar x, y, z;function sub1() {var a, y, z;. . .}function sub2() { var a, b, z; . . .}function sub3() { var a, x, w; . . .}Given the following calling sequences and…

Define a Haskell data type to represent λ-terms. Give the data type definitions and show how you can represent the λ-term λxf.fx using your data type.

Please answer in C++ and give explanation LAB 17.1-B Linked List Read the internal documentation for class ItemList carefully. Fill in the missing code in the implementation file, being careful to adhere to the preconditions and postconditions. Compile your program. ------------------------------------------------------------------------------------------------------------------------------- class ItemList { private: struct ListNode { int value; ListNode * next; }; ListNode * head; public: ItemList(); // Post: List is the empty list. bool IsThere(int item) const; // Post: If item is in the list IsThere is // True; False, otherwise. void Insert(int item); // Pre: item is not already in the list. // Post: item is in the list. void Delete(int item); // Pre: item is in the list. // Post: item is no…

C++.Write a function, named SecondNegative, that takes a const reference to a vector of doubles, it should return an const_iterator to the element in the vector that is the second value that is negative. If no such element exists, have the iterator point to one past the end.

please help, make the diagram very clear and make sure to use c++ terminology please. if possiible could you make the diagram handwritten :) Fish have different species, sizes, colours and favourite foods. They can swim, `blub`, and attempt to eat food (which can be successful or not—depending on what it is). Fish live in aquariums that are of particular volumes and shapes. Aquariums have different kinds of lights, gravel, and filtration technology. Fish can also fight with one another… it is all very exciting. Create class diagrams for the candidate entities in the above paragraph. You can do the UML ascii art style or submit physically.

Please help me design a Airworthy class in C++. THANK YOU! Develop a high-quality, object-oriented C++ program that performs a simulation using a heap implementation of a priority queue. A simulation creates a model of a real-world situation, allowing us to introduce a variety of conditions and observe their effects. For instance, a flight simulator challenges a pilot to respond to varying conditions and measures how well the pilot responds. Simulation is frequently used to measure current business practices, such as the number of checkout lines in a grocery store or the number of tellers in a bank, so that management can determine the fewest number of employees required to meet customer needs. Airlines have been experimenting with different boarding procedures to shorten the entire boarding time, keep the flights on-time, reduce aisle congestion, and make the experience more pleasant for passengers and crew. A late-departing flight can cause a domino effect: the departure gate is…

Need help with Ruby-related code; I'm tackling a sample practice problems and in the selected areas, I wanted to know how I can properly define and adjust the code to function. The ", :pending => true" parts have been removed/scratched out in order to allow the code to check if it works. (It's for checking purposes, ignore it)  Topic: Case-sensitive and If else statement checks