#include class one { int value; public: one(void); void set(int in); int get(void); }; one::one(void) { value=10; } void one::set(int in) { value=in; } int one::get(void) { return value; } int main() { one c1,c2,c3; int dd=5; c1.set(dd); c2.set(20); cout<