0分求调，自己看不出错误

#include <bits/stdc++.h>
using namespace std;

int n,k;
map<string ,int>m;
vector<int>v[100005];

int main()
{
	cin>>n;
	int cnt = 0;
	for(int i = 1;i <= n;i++)
	{
		int x;
		cin>>x;
		for(int j = 1;j <= x;j++)
		{
			string s;
			cin>>s;
			if(m[s] == 0) m[s] = ++cnt;
			v[m[s]].push_back(i);
		}
	}
	cin>>k;
	for(int i = 1;i <= k;i++)
	{
		string s;
		cin>>s;
		if(m[s] == 0)
		{
			cout<<"\n";
			continue;
		}
		for(auto x : v[m[s]])
		{
			cout<<x<<" ";
		}
		cout<<"\n";
	}
	
	return 0;
}