#include using namespace std; #include #include #include #include #include template inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } #define rep(i,n) for (int i = 0; i < (n); ++i) typedef long long ll; using P = pair; const int INF=1001001001; const int mod =1e9+7; int main() { int N;cin>>N; vectorA(N); rep(i,N){cin>>A[i];} sort(A.begin(),A.end()); int cnt=1; int pre=A[0]; for(int i=1;i