OOP

#include <stdio.h>
#include <iostream>
#include <string>
#include <cstring>
#include <stdlib.h>

using namespace std;

class Student {
public:
    char * name;
    int id;
    char * gender;
    int level;

    void studentSet(char * n, int i, char *gen, int lvl) {
        name = new char[strlen(n) + 1];
        strcpy(name, n);
        id = i;
        gender = new char[strlen(gen) + 1];
        strcpy(gender, gen);
        level = lvl;
    }
    void studentShow() {
        cout << "Name -> " << name << '\n';
        cout << "Id -> " << id << '\n';
        cout << "Gender -> " << gender << '\n';
        cout << "Level -> " << level << '\n';
    }
};

class Exam : public Student {
public:
    char * examName;
    int totalCourses;
    int *marks;
   void examSet(char *s, int i, int m[]) {
    examName = new char[strlen(s) + 1];
    strcpy(examName, s);
    totalCourses = i;
    marks = new int[totalCourses + 1];
    for(int i = 0; i < totalCourses; i++) {
        marks[i] = m[i];
    }
   }
    void examShow() {
        studentShow();
        cout << "Exam Name -> " << examName << '\n';
        cout << "Total courses -> " << totalCourses << '\n';
        for(int i = 0; i < totalCourses; i++)
            cout << "Marks -> " << marks[i] << '\n';
    }
};

class Result : public Exam {
public:
    int totalMarks() {
        int res = 0;
        for(int i = 0; i < totalCourses; i++)
            res += marks[i];
        return res;
    }
    bool ok = false;
    void result() {
        int cnt  = 0;
        for(int i = 0; i < totalCourses; i++) {
            if(marks[i] >= 40)
               ok = true;
            else {
                ok = false;
                cnt++;
            }
        }
        if(ok) cout << "Passed in all subjects\n";
        else cout << "Failed in " << cnt << " subjects\n";
    }
};


class Movie{
public:
    char * movieName;
    char * genre;
    int releaseYear;
    int duration;

    void movieSet(char * name, int year, int times, char * gen) {

        movieName = new char[strlen(name) + 1];
        strcpy(movieName, name);
        genre = new char[strlen(gen) + 1];
        strcpy(genre, gen);
        releaseYear = year;
        duration = times;
    }

    void movieShow() {
        cout << "Movie Name -> " << movieName << '\n';
        cout << "Release Year -> " << releaseYear << '\n';
        cout << "Duration -> " << duration << '\n';
        cout << "Genre -> " << genre << '\n';
    }
};

class Animation : public Movie {
public:
    char * graphicsCreator;
    char * leadVocal;

    void set(char *gchar, char *vchar) {
        graphicsCreator = new char[strlen(gchar) + 1];
        leadVocal = new char[strlen(vchar) + 1];
        strcpy(graphicsCreator, gchar);
        strcpy(leadVocal, vchar);
    }
    void show() {
        movieShow();
        cout << "Graphics Creator -> " << graphicsCreator << '\n';
        cout << "Lead Vocal -> " << leadVocal << '\n';
    }
 };

int main() {
    Exam E;
    Result R;
    R.studentSet("Fuad", 42, "Male", 2);
    int k[] = {10, 20, 30, 40, 50};
    R.examSet("First", 5, k);
    R.examShow();
    R.result();
}



///
#include <stdio.h>
#include <iostream>
#include <string>
#include <cstring>
#include <stdlib.h>

using namespace std;

class Person{
public:
    char * name;
    int age;
    char * gender;
    void personSet(char * s, int a, char *gen) {
        name = new char[strlen(s) + 1];
        strcpy(name, s);
        age = a;
        gender = new char[strlen(gen) + 1];
        strcpy(gender, gen);
    }
    void personShow() {
        cout << "Name -> " << name << '\n';
        cout << "Age -> " << age << '\n';
        cout << "Gender -> " << gender << '\n';
    }
};

class Employee : public Person {
public:
    char * designation;
    char * department;
    int salary;
    void employeeSet(char *occ, char * d, int t) {
        designation = new char[strlen(occ) + 1];
        strcpy(designation, occ);
        department = new char[strlen(d) + 1];
        strcpy(department, d);
        salary = t;
    }
    void employeeShow() {
        personShow();
        cout << "Designation -> " << designation << '\n';
        cout << "Department -> " << department << '\n';
        cout << "Salary -> " << salary << '\n';
    }
};

class Customer : public Person {
public:
    char * accountType;
    char * accountNo;
    int balance;
    void customerSet(char *s, char *a, int b) {
        accountType = new char[strlen(s) + 1];
        strcpy(accountType, s);
        accountNo = new char[strlen(a) + 1];
        strcpy(accountNo, a);
        balance = b;
    }
    void showAll() {
        personShow();
        //employeeShow();
        cout << "Account type -> " << accountType << '\n';
        cout << "Account no -> " << accountNo << '\n';
        cout << "Balance -> " << balance << '\n';
    }
};

int main() {
    Customer C;
    C.personSet("Fuad", 22, "Male");
    //C.employeeSet("Teacher", "CSE", 30000);
    C.customerSet("Normal", "101010", 45000);
    C.showAll();

}

////

#include <stdio.h>
#include <iostream>
#include <string>
#include <cstring>
#include <stdlib.h>

using namespace std;

class Department {
private:
    char * name;
protected:
    int id;
public:
    void set(char *c, int i) {
        name = new char[strlen(c) + 1];
        strcpy(name, c);
        id = i;
    }
    void show() {
        cout << name << ' ' << id << '\n';
    }
};

class Institute : public Department {
private:
    char *name;
protected:
    int id;
public:
    void set(char *c, int i, char *s, int j) {
        Department :: set(s, j);
        name = new char[strlen(c) + 1];
        strcpy(name, c);
        id = i;
    }
    void show() {
        cout << Institute :: name << ' ' << Institute :: id << ' ' <<'\n';
        Department ::show();
    }
};

int main(){
    Institute I;
    I.set("MIST", 10, "CSE", 20);
    I.show();
}

///