我蒙了呀

#include<bits/stdc++.h>
using namespace std;
int n,a[1005];
int main(){
	cin>>n;
	int ans=0,cun=n;
	while(cun!=1){
		if(cun%2==0){
			cun/=2;
			a[ans]=cun;
		}else{
			cun=cun*3+1;
			a[ans]=cun;
		}
		ans++;
	}
	for(int i=ans;i>=1;i--){
		cout<<a[i-1]<<" ";
	} 
	cout<<n;
	return 0;
}