#include #include #include #include using namespace std; const long long inf = 1LL << 62; class linear { public: long long a, b; linear() : a(0), b(0) {}; linear(long long a_, long long b_) : a(a_), b(b_) {}; long long get(long long x) const { return a * x + b; } double collide(const linear& l) const { return -double(a - l.a) / (b - l.b); } }; int main() { int N; cin >> N; vector A(N); for (int i = 0; i < N; ++i) { cin >> A[i]; } vector S(N + 1); for (int i = 0; i < N; ++i) { S[i + 1] = S[i] + A[i]; } vector dp(N + 1, inf); dp[0] = 0; vector ans(N + 1, inf); for (int i = N; i >= 1; --i) { for (int j = 0; j <= N; ++j) { ans[i] = min(ans[i], dp[j] + S[N] * (S[N] - 2 * S[j])); } deque que; vector ndp(N + 1, inf); for (int j = 1; j <= N; ++j) { linear ln(-2 * S[j - 1], dp[j - 1]); while (que.size() >= 2 && que[que.size() - 2].collide(ln) < que[que.size() - 1].collide(ln)) { que.pop_back(); } que.push_back(ln); while (que.size() >= 2 && que[0].get(S[j - 1]) > que[1].get(S[j - 1])) { que.pop_front(); } ndp[j] = que.front().get(S[j - 1]) + S[j - 1] * S[j - 1] + S[j] * S[j]; } dp = ndp; } for (int i = 1; i <= N; ++i) { cout << ans[i] << '\n'; } return 0; }