November 9, 2022 1. Adding 2 numbers #include <iostream> using namespace std; int main() { int a = 5, b = 10; int sum = a + b; cout << "The sum is " << sum; return 0; } Output > The sum is 15 2. Program that takes string input using cin #include <iostream> using namespace std; int main() { string fName; cout << "Enter your name: "; cin >> fName; cout << "Your name is " << fName; return 0; } Output > Enter your name: Nikhil > Your name is Nikhil 3. Sum using user input #include <iostream> using namespace std; int main() { int a,b,sum=0; cout << "Enter a: "; cin >> a; cout << "Enter b: "; cin >> b; sum = a + b; cout << "The sum is " << sum; return 0; } Output > Enter a: 8 > Enter b: 12 > The sum is 20 4. Program to find the area #include <iostream> using namespace std; int main() { int area,l,b; cout << "Enter length: "; cin >> l; cout << "Enter breath: "; cin >> b; area = l*b; cout << "The area is " << area << " sq.m"; return 0; } Output > Enter length: 7 > Enter breath: 3 > The area is 21 sq.m