RT，请管理员查看我的AC记录，明显错误但是AC

#include<bits/stdc++.h>
#define MAXN 120000
using namespace std;
int tot;
int head[MAXN],nxt[MAXN],to[MAXN];
int tmp[MAXN],du[MAXN],p[MAXN];
int n,m;
bool vis[MAXN];
vector<int> ans;
vector<int> ans_1;
void add(int u,int v)
{
	 tot++;
	 to[tot]=v;
	 nxt[tot]=head[u];
	 head[u]=tot;
}
bool check(int x)
{

}

void solve()
{

}
int main()
{
	int T;
	cin>>T;
	while(T--)
	{
//		memset(du,0,sizeof(du));
		solve();
		cout<<ans.size()<<" ";
		for(int i=0;i<ans.size();i++)
		{
			cout<<ans[i]<<" ";
		}
		cout<<endl;
		cout<<ans_1.size()<<" ";
		for(int i=0;i<ans_1.size();i++)
		{
			cout<<ans_1[i]<<" ";
		}
		cout<<endl;
	}
}