#include using namespace std; using ll = long long; using ull = unsigned long long; #define rep(i,n) for(int i=0; i<(int)(n); i++) #define MOD 1000000007 #define MOD2 998244353 #define INF 1000000007 #define LINF 1000000000000000007LL #define PI 3.14159265359 #define P pair template inline bool chmax(T &a, const T &b){ if(a inline bool chmin(T &a, const T &b){ if(a>b) {a=b; return true;} else return false; } struct Edge{ int to; ll cost; Edge(int to, ll cost) : to(to), cost(cost) {} }; typedef vector Edges; typedef vector Graph; void add_edge(Graph &g,int from,int to,ll cost,bool rev,ll rev_cost){ g[from].push_back(Edge(to,cost)); if(rev) g[to].push_back(Edge(from,rev_cost)); } void solve(){ int n,m; cin>>n>>m; set st; rep(i,n){ int a; cin>>a; st.insert(a); } int ma, mi; ma=st.size(); if(st.size()==1 && n==m) mi=1; else mi=0; cout<