結果
問題 | No.974 最後の日までに |
ユーザー | hitonanode |
提出日時 | 2020-01-17 23:13:51 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
MLE
|
実行時間 | - |
コード長 | 4,783 bytes |
コンパイル時間 | 2,091 ms |
コンパイル使用メモリ | 181,016 KB |
実行使用メモリ | 814,596 KB |
最終ジャッジ日時 | 2024-06-26 00:19:08 |
合計ジャッジ時間 | 6,200 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
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testcase_00 | MLE | - |
testcase_01 | -- | - |
testcase_02 | -- | - |
testcase_03 | -- | - |
testcase_04 | -- | - |
testcase_05 | -- | - |
testcase_06 | -- | - |
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testcase_39 | -- | - |
testcase_40 | -- | - |
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testcase_42 | -- | - |
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testcase_44 | -- | - |
testcase_45 | -- | - |
testcase_46 | -- | - |
testcase_47 | -- | - |
testcase_48 | -- | - |
testcase_49 | -- | - |
testcase_50 | -- | - |
testcase_51 | -- | - |
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 SZ(x) ((lint)(x).size()) #define POW2(n) (1LL << (n)) #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> void ndarray(vector<T> &vec, int len) { vec.resize(len); } template<typename T, typename... Args> void ndarray(vector<T> &vec, int len, Args... args) { vec.resize(len); for (auto &v : vec) ndarray(v, args...); } template<typename T> bool mmax(T &m, const T q) { if (m < q) {m = q; return true;} else return false; } template<typename T> bool mmin(T &m, const T q) { if (m > q) {m = q; return true;} else return false; } template<typename T1, typename T2> pair<T1, T2> operator+(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first + r.first, l.second + r.second); } template<typename T1, typename T2> pair<T1, T2> operator-(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first - r.first, l.second - r.second); } 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 deque<T> &vec){ os << "deq["; 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 T> ostream &operator<<(ostream &os, const unordered_set<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; } template<typename T> ostream &operator<<(ostream &os, const multiset<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; } template<typename T> ostream &operator<<(ostream &os, const unordered_multiset<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; } template<typename TK, typename TV> ostream &operator<<(ostream &os, const unordered_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 ///// vector<plint> sol(vector<plint> v) { int n = v.size(); vector<plint> ret(1 << n, plint(1e18, 1e18)); int t = 0; REP(S, 1 << n) { bool ok = true; REP(d, n - 1) { if ((S >> d) & (S >> (d + 1)) & 1) ok = false; } if (!ok) continue; lint cost = 0, val = 0; REP(d, n) if ((S >> d) & 1) cost += v[d].first, val += v[d].second; ret[t] = plint(cost, val); t++; } ret.resize(t); std::sort(ALL(ret)); IREP(i, t - 1) if (ret[i].first == ret[i + 1].first) ret[i] = ret[i + 1]; return ret; } lint maxcost; lint solve(vector<plint> v1, vector<plint> v2) { vector<plint> w1 = sol(v1); vector<plint> w2 = sol(v2); lint ret = 0; for (auto p : w1) { lint cost = maxcost - p.first; auto itr = lower_bound(ALL(w2), plint(cost + 1, -1)); if (itr == w2.begin()) continue; mmax(ret, prev(itr)->second + p.second); } return ret; } int main() { int W; cin >> W; if (W == 1) { puts("0"); return 0; } vector<lint> A(W), B(W), C(W); REP(i, W) cin >> A[i] >> B[i] >> C[i]; maxcost = accumulate(ALL(A), 0LL); int n = (W - 1) / 2; vector<plint> cost_v1, cost_v2; vector<plint> D; REP(i, W - 1) D.emplace_back(A[i] + A[i + 1] + C[i + 1], B[i + 1]); REP(i, n - 1) cost_v1.emplace_back(D[i]); FOR(i, n, W - 1) cost_v2.emplace_back(D[i]); lint ret1 = solve(cost_v1, cost_v2); cost_v1.clear(); cost_v2.clear(); REP(i, n) cost_v1.emplace_back(D[i]); FOR(i, n + 1, W - 1) cost_v2.emplace_back(D[i]); lint ret2 = solve(cost_v1, cost_v2); cout << max(ret1, ret2) << endl; }