Structures and Pointers

Untitled

Task 1:

https://www.educative.io/courses/learn-cpp-from-scratch

Complete following exercises from the above link:

• What are Pointers?
• Pointers Implementations
• Pointer to a function

Reading:

https://www.programiz.com/cpp-programming/structure

Task 2:

Write a structure to store the roll no., name, age (between 11 to 14) and address of students (more than 10). Store the information of the students.

1 - Write a function to print the names of all the students having age 14.

2 - Write another function to print the names of all the students having even roll no.

3 - Write another function to display the details of the student whose roll no is given (i.e. roll no. entered by the user).

// Write a structure to store the roll no., name, age (between 11 to 14) and address of students (more than 10). Store the information 
// of the students.
// 1 - Write a function to print the names of all the students having age 14.
// 2 - Write another function to print the names of all the students having even roll no.
// 3 - Write another function to display the print_specific of the student whose roll no is given (i.e. roll no. entered by the user).

#include <iostream>
#include <string>
using namespace std;
struct student
{
    int roll;
    string name;
    int age;
    string add;
}stu[20];

void print_age(int i)
{
    if (stu[i].age == 14)
    {
        cout << stu[i].name << endl;
    }
}

void print_even(int i)
{
    if (stu[i].roll % 2 == 0)
    {
        cout << stu[i].name << endl;
    }
}

void print_specific(int i)
{
    cout << stu[i].name << endl;
    cout << stu[i].roll << endl;
    cout << stu[i].age << endl;
    cout << stu[i].add << endl;
}

int main()
{
    int n;
    cout << "Enter the number of students: ";
    cin >> n;
    cin.ignore();
    for (int i = 0; i < n; i++)
    {
        cout << "Enter Name of the Student " << i + 1 << " : ";
        cin.clear();
        getline(cin,(stu[i].name)); 
        cout << "Enter Roll No of the Student " << i + 1 << " : ";
        cin >> stu[i].roll;
        cout << "Enter Age of the Student " << i + 1 << " : ";
        cin >> stu[i].age;
        cout << "Enter Address of the Student " << i + 1 << " : ";
        cin.clear();
        cin.ignore();
        getline(cin,(stu[i].add)); 
        cout << endl;
    }
    cout << "\\nStudents having age 14: " << endl;
    for (int i = 0; i < n; i++)
    {
        print_age(i);
    }
    cout << "\\nStudents having even Roll no.: " << endl;
    for (int i = 0; i < n; i++)
    {
        print_even(i);
    }
    cout << "\\nStudent Details: " << endl;
    for (int i = 0; i < n; i++)
    {
        print_specific(i);
    }
}