結果
問題 | No.1288 yuki collection |
ユーザー |
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提出日時 | 2020-09-25 02:24:19 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
MLE
|
実行時間 | - |
コード長 | 3,048 bytes |
コンパイル時間 | 2,344 ms |
コンパイル使用メモリ | 205,620 KB |
最終ジャッジ日時 | 2025-01-14 20:25:59 |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 12 TLE * 21 MLE * 7 |
ソースコード
#include <bits/stdc++.h>using namespace std;using int64 = long long;const int mod = 1e9 + 7;// const int mod = 998244353;const int64 infll = (1LL << 62) - 1;const int inf = (1 << 30) - 1;struct IoSetup {IoSetup() {cin.tie(nullptr);ios::sync_with_stdio(false);cout << fixed << setprecision(10);cerr << fixed << setprecision(10);}} iosetup;template< typename T1, typename T2 >ostream &operator<<(ostream &os, const pair< T1, T2 > &p) {os << p.first << " " << p.second;return os;}template< typename T1, typename T2 >istream &operator>>(istream &is, pair< T1, T2 > &p) {is >> p.first >> p.second;return is;}template< typename T >ostream &operator<<(ostream &os, const vector< T > &v) {for(int i = 0; i < (int) v.size(); i++) {os << v[i] << (i + 1 != v.size() ? " " : "");}return os;}template< typename T >istream &operator>>(istream &is, vector< T > &v) {for(T &in : v) is >> in;return is;}template< typename T1, typename T2 >inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); }template< typename T1, typename T2 >inline bool chmin(T1 &a, T2 b) { return a > b && (a = b, true); }template< typename T = int64 >vector< T > make_v(size_t a) {return vector< T >(a);}template< typename T, typename... Ts >auto make_v(size_t a, Ts... ts) {return vector< decltype(make_v< T >(ts...)) >(a, make_v< T >(ts...));}template< typename T, typename V >typename enable_if< is_class< T >::value == 0 >::type fill_v(T &t, const V &v) {t = v;}template< typename T, typename V >typename enable_if< is_class< T >::value != 0 >::type fill_v(T &t, const V &v) {for(auto &e : t) fill_v(e, v);}template< typename F >struct FixPoint : F {FixPoint(F &&f) : F(forward< F >(f)) {}template< typename... Args >decltype(auto) operator()(Args &&... args) const {return F::operator()(*this, forward< Args >(args)...);}};template< typename F >inline decltype(auto) MFP(F &&f) {return FixPoint< F >{forward< F >(f)};}int main() {int N;cin >> N;string S;cin >> S;vector< int > V(N);cin >> V;unordered_map< int64, int64 > dp;auto conv = [&](int64 a, int64 b, int64 c, int64 d) {return d * 500 * 500 * 500 + c * 500 * 500 + b * 500 + a;};auto rec = MFP([&](auto rec, int y, int yu, int yuk, int idx) -> int64 {if(idx == N) {if(y == 0 && yu == 0 && yuk == 0) return 0;else return -infll;}int beet = conv(y, yu, yuk, idx);if(dp.count(beet)) return dp[beet];int64 ret = rec(y, yu, yuk, idx + 1);if(S[idx] == 'y') {if(y < 250) chmax(ret, rec(y + 1, yu, yuk, idx + 1) + V[idx]);} else if(S[idx] == 'u') {if(y > 0) chmax(ret, rec(y - 1, yu + 1, yuk, idx + 1) + V[idx]);} else if(S[idx] == 'k') {if(yu > 0) chmax(ret, rec(y, yu - 1, yuk + 1, idx + 1) + V[idx]);} else {if(yuk > 0) chmax(ret, rec(y, yu, yuk - 1, idx + 1) + V[idx]);}return dp[beet] = ret;});cout << rec(0, 0, 0, 0) << "\n";}