#include <iostream>
using namespace std;

int main() {
    cout << "subject" << "\tmarks" << "\nmathematics\t" << 90 
         << "\ncomputer\t" << 77 << "\nchemistry\t" << 69;
    return 0;
}
                        

#include <iostream>
using namespace std;

int main() {
    int a, b, c;
    cout << "\nEnter first number : ";
    cin >> a;
    cout << "\nEnter second number : ";
    cin >> b;
    c = a + b;
    cout << "\nThe Sum is : " << c;
    return 0;
}
                        

#include <iostream>
using namespace std;

int main() {
    float F, C;
    cout << "\nEnter temperature in Fahrenheit : ";
    cin >> F;
    C = 5 * (F - 32) / 9;
    cout << "Temperature in Celsius is : " << C;
    return 0;
}
                        

#include <iostream>
using namespace std;

int main() {
    int p, r, t, i;
    cout << "Enter Principle : ";
    cin >> p;
    cout << "Enter Rate : ";
    cin >> r;
    cout << "Enter Time : ";
    cin >> t;
    i = (p * r * t) / 100;
    cout << "Simple interest is : " << i;
    return 0;
}
                        

#include <iostream>
using namespace std;

int main() {
    char ch;
    cout << "\nEnter any character : ";
    cin >> ch;
    cout << "ASCII equivalent is : " << int(ch);
    return 0;
}
                        

#include <iostream>
using namespace std;

int main() {
    int a, b, temp;
    cout << "\nEnter two numbers : ";
    cin >> a >> b;
    temp = a;
    a = b;
    b = temp;
    cout << "\nAfter swapping numbers are : " << a << " " << b;
    return 0;
}
                        

#include <iostream>
using namespace std;

int main() {
    float r, area;
    cout << "\nEnter radius of circle : ";
    cin >> r;
    area = 3.14 * r * r;
    cout << "Area of circle : " << area;
    return 0;
}
                        

#include <iostream>
using namespace std;

int main() {
    int a;
    cout << "Enter any non-zero Number : ";
    cin >> a;
    (a > 0) ? cout << "Number is positive" : cout << "Number is negative";
    return 0;
}
                        

#include <iostream>
using namespace std;

int main() {
    int a;
    cout << "Enter the Number : ";
    cin >> a;
    (a % 2 == 0) ? cout << "Number is even" : cout << "Number is odd";
    return 0;
}