結果
問題 | No.953 席 |
ユーザー | hitonanode |
提出日時 | 2019-12-16 00:57:28 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 354 ms / 2,000 ms |
コード長 | 3,367 bytes |
コンパイル時間 | 2,123 ms |
コンパイル使用メモリ | 190,060 KB |
実行使用メモリ | 30,848 KB |
最終ジャッジ日時 | 2024-07-02 18:35:41 |
合計ジャッジ時間 | 9,594 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 25 |
ソースコード
#include <bits/stdc++.h> using namespace std; using lint = long long int; using pint = pair<int, int>; using plint = pair<lint, lint>; struct fast_ios { fast_ios(){ cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_; #define ALL(x) (x).begin(), (x).end() #define FOR(i, begin, end) for(int i=(begin),i##_end_=(end);i<i##_end_;i++) #define IFOR(i, begin, end) for(int i=(end)-1,i##_begin_=(begin);i>=i##_begin_;i--) #define REP(i, n) FOR(i,0,n) #define IREP(i, n) IFOR(i,0,n) template<typename T> istream &operator>>(istream &is, vector<T> &vec){ for (auto &v : vec) is >> v; return is; } ///// This part below is only for debug, not used ///// template<typename T> ostream &operator<<(ostream &os, const vector<T> &vec){ os << "["; for (auto v : vec) os << v << ","; os << "]"; return os; } template<typename T> ostream &operator<<(ostream &os, const set<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; } template<typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &pa){ os << "(" << pa.first << "," << pa.second << ")"; return os; } template<typename TK, typename TV> ostream &operator<<(ostream &os, const map<TK, TV> &mp){ os << "{"; for (auto v : mp) os << v.first << "=>" << v.second << ","; os << "}"; return os; } #define dbg(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ") " << __FILE__ << endl; ///// END ///// int main() { int N, K, K2; cin >> N >> K >> K2; vector<int> yusen(N + 2); int i = K, j = K2, pr = 0; if (K2 < K) { i = K2, j = K + 1, pr = 1; } while (true) { if (i <= 0 and j > N) break; if (i > 0) yusen[i--] = pr++; if (j <= N) yusen[j++] = pr++; } auto f = [&](int l, int r){ return yusen[l] < yusen[r]; }; set<int, function<bool(int l, int r)>> aki(f), aki_pri(f); FOR(i, 1, N + 1) aki.insert(i), aki_pri.insert(i); map<lint, vector<plint>> kyaku; int Q; cin >> Q; REP(q, Q) { int a, b; cin >> a >> b; kyaku[a].emplace_back(q, b); // hito, duration } lint t = -1; vector<int> ret(Q); queue<plint> waiting; vector<int> state(N + 2); while (true) { auto p = kyaku.upper_bound(t); if (p == kyaku.end()) break; t = p->first; for (auto pa : p->second) { lint q = pa.first, T = pa.second; if (q >= 0) waiting.emplace(pa); if (q < 0) { aki.insert(T); state[T] = 0; FOR(d, -1, 2) if ((T + d - 1 < 0 or !state[T + d - 1]) and !state[T + d] and !state[T + d + 1] and T + d > 0 and T + d <= N) aki_pri.insert(T + d); } } while (aki.size() and waiting.size()) { lint q = waiting.front().first, T = waiting.front().second; int v; if (aki_pri.size()) { v = *aki_pri.begin(); aki_pri.erase(v); aki_pri.erase(v - 1); aki_pri.erase(v + 1); } else { v = *aki.begin(); } waiting.pop(); kyaku[t + T].emplace_back(-1, v); aki.erase(v); state[v] = 1; ret[q] = v; } } REP(q, Q) printf("%d\n", ret[q]); }