#include #include #include using namespace std; using i64 = long long; using u64 = unsigned long long; using i32 = int; using u32 = unsigned int; #define rep(i,n) for(int i=0; i<(n); i++) int main() { int N; cin >> N; vector A(N); rep(i,N){ int a; cin >> a; A[i] = a-1; } vector P(N); rep(i,N) P[A[i]] = i; vector dir(N); rep(t,2){ vector maxG(N+2, -1); rep(i,N) maxG[P[i]+1] = max(maxG[i+1], i); rep(i,N){ int p = P[i]; if(maxG[p] > maxG[p+2]){ P[i]--; dir[p] = 0; } else{ P[i]++; dir[p] = 1; } } } int blockcnt = 1; vector sep = {0}; rep(i,N-1) if(dir[i] == 0 && dir[i+1] == 1){ blockcnt++; sep.push_back(i+1); } sep.push_back(N); int blockt = 0; rep(i,sep.size()-1){ int l = sep[i], r = sep[i+1]; int m = l; while(m < r && dir[m] == 1) m++; blockt = max(m-l, r-m) - 1; } cout << blockt << " " << blockcnt << "\n"; return 0; } struct ios_do_not_sync{ ios_do_not_sync(){ std::ios::sync_with_stdio(false); std::cin.tie(nullptr); } } ios_do_not_sync_instance;