题解

#include <iostream>
using namespace std;
int main(){
	int n,a[1005]={1,1};
	cin>>n;
	for (int i=2;i<=n;i++){
		if (i%2 == 0){
			a[i] = a[i-1]+a[i/2];
		}else{
			a[i] = a[i-1];
		}
	}
	
	cout<<a[n];
	
	return 0;
}