#include namespace { #pragma GCC diagnostic ignored "-Wunused-function" #include #pragma GCC diagnostic warning "-Wunused-function" using namespace std; using namespace atcoder; #define rep(i,n) for(int i = 0; i < (int)(n); i++) #define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--) #define all(x) begin(x), end(x) #define rall(x) rbegin(x), rend(x) template bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; } template bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; } using ll = long long; using P = pair; using VI = vector; using VVI = vector; using VL = vector; using VVL = vector; } int main() { ios::sync_with_stdio(false); cin.tie(0); // right -> col // mizu -> +1 map mp{{1.1e9, 0}}; int now = 0; int n; cin >> n; rep(i, n) { int h; cin >> h; int cur = 0; for (auto it = mp.begin();;) { if (h >= it->first) { now -= it->second * (it->first - cur); now += (i % 2 == 0) * (it->first - cur); cur = it->first; it = mp.erase(it); } else { now -= it->second * (h - cur); now += (i % 2 == 0) * (h - cur); mp.emplace(h, i % 2 == 0); break; } } cout << now << '\n'; } }