struct cc {
int _a;
int _b;
cc() : _a(0), _b(0) {}
cc(int a,int b) : _a(a), _b(b) {}
cc& operator=(const cc& c){
_a = c._a;
_b = c._b;
return *this;
}
};
int main()
{
cc c;
c = cc(100,200);
return 0;
}