// {{{ Templates #include #define show(x) cerr << #x << " = " << x << endl using namespace std; using ll = long long; using pii = pair; using vi = vector; template ostream& operator<<(ostream& os, const vector& v) { os << "sz:" << v.size() << "\n["; for (const auto& p : v) { os << p << ","; } os << "]\n"; return os; } template ostream& operator<<(ostream& os, const pair& p) { os << "(" << p.first << "," << p.second << ")"; return os; } constexpr ll MOD = (ll)1e9 + 7LL; template constexpr T INF = numeric_limits::max() / 100; // }}} int main() { cin.tie(0); ios::sync_with_stdio(false); int N; cin >> N; vector v(N); for (int i = 0; i < N; i++) { cin >> v[i]; } vector> dp(N + 1, vector(2, 0)); //i枚目まで取ってlastを取ったか for (int i = 1; i <= N; i++) { dp[i][1] = dp[i - 1][0] + v[i - 1]; dp[i][0] = max(dp[i - 1][0], dp[i - 1][1]); } int maxi = max(dp[N][0], dp[N][1]); cout << maxi << endl; show(dp); vector selected; bool select = false; for (int i = N; i >= 1; i--) { select = (select) ? false : (dp[i][0] >= dp[i][1]) ? false : true; if (select) { selected.push_back(i); } } reverse(selected.begin(), selected.end()); for (int i = 0; i < selected.size(); i++) { if (i != 0) { cout << " "; } cout << selected[i]; } cout << endl; return 0; }