599B - Spongebob and Joke - CodeForces Solution

#include <bits/stdc++.h>
#define int long long
using namespace std;
int n,m,f[100010],b[100010],f_num[100010],f_where[100010];
signed main()
{
	cin>>n>>m;
	for(int i=1;i<=n;i++)
	{
		cin >> f[i];
		f_num[f[i]]++,f_where[f[i]] = i;
	}
	for(int i=1;i<=m;i++)
	{
		cin>>b[i];
		if(!f_where[b[i]])
		{
			cout << "Impossible";
			return 0; 
		}	
	}
	for(int i=1;i<=m;i++)
		if(f_num[b[i]]>1)
		{
			cout<<"Ambiguity";
			return 0; 
		}
	cout << "Possible"<<endl;
	for(int i=1;i<=m;i++) cout<<f_where[b[i]]<<" ";
	return 0;
}