// Header Files #include <iostream> using namespace std; main() { int a = 21; int c ; // Value of a will not be increased before assignment. c = a++; cout << "Result 1 - Value of a++ is :" << c << endl ; // After expression value of a is increased cout << "Result 2 - Value of a is :" << a << endl ; // Value of a will be increased before assignment. c = ++a; cout << "Result 3 - Value of ++a is :" << c << endl ; return 0; }