黑子题解

#include<bits/stdc++.h>
#define ikun int
using namespace std;
ikun kunin()
{
	ikun kunkun;
	cin>>kunkun;
	return kunkun;
}
ikun kun(ikun n)
{
	if(n==1||n==2) return n;
	else if(n%2==1) return kun(n-1);
	else if(n%2==0) return kun(n/2)+kun(n-2);
}
void kunout(ikun basketball)
{
	cout<<kun(basketball);
}
int main()
{
	int basketball=kunin();
	kunout(basketball);
}