제출 #800288

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
800288		hugo_pm	Editor (BOI15_edi)	C++17	0 / 100	3070 ms	14860 KiB

edi

#include <bits/stdc++.h>
#define int long long
using namespace std;

#define all(v) (v).begin(), (v).end()
#define rall(v) (v).rbegin(), (v).rend()
#define rep(i, a, b) for(int i = (a); i < (b); i++)
#define sz(v) ((int)((v).size()))

template<typename T>
void chmax(T &x, const T &v) { if (x < v) x = v; }
template<typename T>
void chmin(T &x, const T &v) { if (x > v) x = v; }

using pii = pair<int, int>;
using vi = vector<int>;

string to_string(string s) { return s; }
template <typename T> string to_string(T v) {
	bool first = true;
	string res = "[";
	for (const auto &x : v) {
		if (!first)
			res += ", ";
		first = false;
		res += to_string(x);
	}
	res += "]";
	return res;
}

template <typename A, typename B>
string to_string(pair<A, B> p) {
  return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";
}

void dbg_out() { cout << endl; }
template <typename Head, typename... Tail> void dbg_out(Head H, Tail... T) {
	cout << ' ' << to_string(H);
	dbg_out(T...);
}

#ifdef DEBUG
#define dbg(...) cout << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)
#else
#define dbg(...)
#endif

signed main() {
	ios::sync_with_stdio(false);
	cin.tie(0);

    int N; cin >> N;
    vector<int> level(N, 0), value(N, -1);
    vector<bool> active(N, false);
    vector<int> parent(N, -1);
    for (int iOp = 0; iOp < N; ++iOp) {
        int action;
        cin >> action;
        if (action < 0) {
            level[iOp] = -action;
            parent[iOp] = iOp-1;
            while (!active[parent[iOp]] || level[parent[iOp]] >= level[iOp]) {
                --parent[iOp];
            }
        } else {
            level[iOp] = 0, value[iOp] = action;
        }
        int flipping = iOp;
        while (flipping != -1) {
            active[flipping].flip();
            flipping = parent[flipping];
        }
        int lastEdit = iOp;
        while (!active[lastEdit] || level[lastEdit] != 0) {
            --lastEdit;
        }
        cout << value[lastEdit] << '\n';
    }
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 15
• Subtask 3: 0 / 28
• Subtask 4: 0 / 37