0* Program to swap two numbers using a temporary variable with each statement explained with comments *
#include // headerfile for cout statementusing namespace std; // include standard library filesint main() // main()- starting point of the program with int return type { // start of main() int a = 5, b = 10, temp; // 3 variables where a,b are initialised and a temp variable cout << "Before swapping." << endl; // print statement cout << "a = " << a << ", b = " << b << endl; // values before swapping temp = a; // assign a to temp a = b; // assign b to a b = temp; // final step in swapping with assigning temp ,ie, a to b cout << "\nAfter swapping." << endl; // print statement cout << "a = " << a << ", b = " << b << endl; // values after swapping return 0; //return value required coz on int return type of main()} // termination of main()
// Semi-colon ';' is termination of each valid C++ statement
