結果
問題 | No.2539 スライムゲーム |
ユーザー |
|
提出日時 | 2023-10-03 19:36:50 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 14 ms / 1,000 ms |
コード長 | 9,130 bytes |
コンパイル時間 | 4,824 ms |
コンパイル使用メモリ | 271,076 KB |
最終ジャッジ日時 | 2025-02-17 04:08:26 |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
other | AC * 45 |
ソースコード
#ifndef HIDDEN_IN_VS // 折りたたみ用// 警告の抑制#define _CRT_SECURE_NO_WARNINGS// ライブラリの読み込み#include <bits/stdc++.h>using namespace std;// 型名の短縮using ll = long long; // -2^63 ~ 2^63 = 9 * 10^18(int は -2^31 ~ 2^31 = 2 * 10^9)using pii = pair<int, int>; using pll = pair<ll, ll>; using pil = pair<int, ll>; using pli = pair<ll, int>;using vi = vector<int>; using vvi = vector<vi>; using vvvi = vector<vvi>; using vvvvi = vector<vvvi>;using vl = vector<ll>; using vvl = vector<vl>; using vvvl = vector<vvl>; using vvvvl = vector<vvvl>;using vb = vector<bool>; using vvb = vector<vb>; using vvvb = vector<vvb>;using vc = vector<char>; using vvc = vector<vc>; using vvvc = vector<vvc>;using vd = vector<double>; using vvd = vector<vd>; using vvvd = vector<vvd>;template <class T> using priority_queue_rev = priority_queue<T, vector<T>, greater<T>>;using Graph = vvi;// 定数の定義const double PI = acos(-1);const vi DX = { 1, 0, -1, 0 }; // 4 近傍(下,右,上,左)const vi DY = { 0, 1, 0, -1 };int INF = 1001001001; ll INFL = 4004004003104004004LL; // (int)INFL = 1010931620;double EPS = 1e-15;// 入出力高速化struct fast_io { fast_io() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(18); } } fastIOtmp;// 汎用マクロの定義#define all(a) (a).begin(), (a).end()#define sz(x) ((int)(x).size())#define lbpos(a, x) (int)distance((a).begin(), std::lower_bound(all(a), x))#define ubpos(a, x) (int)distance((a).begin(), std::upper_bound(all(a), x))#define Yes(b) {cout << ((b) ? "Yes\n" : "No\n");}#define rep(i, n) for(int i = 0, i##_len = int(n); i < i##_len; ++i) // 0 から n-1 まで昇順#define repi(i, s, t) for(int i = int(s), i##_end = int(t); i <= i##_end; ++i) // s から t まで昇順#define repir(i, s, t) for(int i = int(s), i##_end = int(t); i >= i##_end; --i) // s から t まで降順#define repe(v, a) for(const auto& v : (a)) // a の全要素(変更不可能)#define repea(v, a) for(auto& v : (a)) // a の全要素(変更可能)#define repb(set, d) for(int set = 0; set < (1 << int(d)); ++set) // d ビット全探索(昇順)#define repp(a) sort(all(a)); for(bool a##_perm = true; a##_perm; a##_perm = next_permutation(all(a))) // a の順列全て(昇順)#define smod(n, m) ((((n) % (m)) + (m)) % (m)) // 非負mod#define uniq(a) {sort(all(a)); (a).erase(unique(all(a)), (a).end());} // 重複除去#define EXIT(a) {cout << (a) << endl; exit(0);} // 強制終了#define inQ(x, y, u, l, d, r) ((u) <= (x) && (l) <= (y) && (x) < (d) && (y) < (r)) // 半開矩形内判定// 汎用関数の定義template <class T> inline ll pow(T n, int k) { ll v = 1; rep(i, k) v *= n; return v; }template <class T> inline bool chmax(T& M, const T& x) { if (M < x) { M = x; return true; } return false; } // 最大値を更新(更新されたら trueを返す)template <class T> inline bool chmin(T& m, const T& x) { if (m > x) { m = x; return true; } return false; } // 最小値を更新(更新されたら trueを返す)template <class T> inline T get(T set, int i) { return (set >> i) & T(1); }// 演算子オーバーロードtemplate <class T, class U> inline istream& operator>>(istream& is, pair<T, U>& p) { is >> p.first >> p.second; return is; }template <class T> inline istream& operator>>(istream& is, vector<T>& v) { repea(x, v) is >> x; return is; }template <class T> inline vector<T>& operator--(vector<T>& v) { repea(x, v) --x; return v; }template <class T> inline vector<T>& operator++(vector<T>& v) { repea(x, v) ++x; return v; }#endif // 折りたたみ用#if __has_include(<atcoder/all>)#include <atcoder/all>using namespace atcoder;#ifdef _MSC_VER#include "localACL.hpp"#endif//using mint = modint1000000007;using mint = modint998244353;//using mint = modint; // mint::set_mod(m);namespace atcoder {inline istream& operator>>(istream& is, mint& x) { ll x_; is >> x_; x = x_; return is; }inline ostream& operator<<(ostream& os, const mint& x) { os << x.val(); return os; }}using vm = vector<mint>; using vvm = vector<vm>; using vvvm = vector<vvm>; using vvvvm = vector<vvvm>;#endif#ifdef _MSC_VER // 手元環境(Visual Studio)#include "local.hpp"#else // 提出用(gcc)inline int popcount(int n) { return __builtin_popcount(n); }inline int popcount(ll n) { return __builtin_popcountll(n); }inline int lsb(int n) { return n != 0 ? __builtin_ctz(n) : -1; }inline int lsb(ll n) { return n != 0 ? __builtin_ctzll(n) : -1; }inline int msb(int n) { return n != 0 ? (31 - __builtin_clz(n)) : -1; }inline int msb(ll n) { return n != 0 ? (63 - __builtin_clzll(n)) : -1; }inline int msb(__int128 n) { return (n >> 64) != 0 ? (127 - __builtin_clzll((ll)(n >> 64))) : n != 0 ? (63 - __builtin_clzll((ll)(n))) : -1; }#define gcd __gcd#define dump(...)#define dumpel(v)#define dump_list(v)#define dump_mat(v)#define input_from_file(f)#define output_to_file(f)#define Assert(b) { if (!(b)) while (1) cout << "OLE"; }#endif// 一番右の "()" の中身だけ切り出す.pair<string, string> sep(const string& s) {int n = sz(s);int acc = 0;repir(i, n - 1, 0) {if (s[i] == ')') acc++;else acc--;if (acc == 0) {return make_pair(s.substr(0, i), s.substr(i + 1, n - i - 2));}else if (acc < 0) return { "", "" };}return { "", "" };}map<string, string> atk_memo;string atk(const string& s) {if (atk_memo.count(s)) return atk_memo[s];auto [t, u] = sep(s);if (t == "" && u == "") return atk_memo[s] = "";if (u == "") return atk_memo[s] = t;string u2 = atk(u);auto v = t + "(" + u2 + ")(" + u2 + ")";return atk_memo[s] = atk(v);}ll naive(string s) {ll hp = 0;while (s != "") {s = atk(s);hp++;}for (auto [s, s2] : atk_memo) {// dump(s, "->", s2);}return hp;}/*((()(()))) 256(()(())) 8()(()) 3((((())))) 65536(((()))) 16((())) 4(()) 2() 1(((()()))) 65536((()())) 16(()()) 4()() 2予想:s t : f(s) + f(t)(s) : 2^f(s)ゴミ s : f(s) + 1*///【累乗(切り詰め)】O(log_a(inf))/** 非負正数 a, n に対し min(a^n, inf) を返す.*/ll truncated_pow(ll a, ll n, ll inf = INFL) {// verify : https://atcoder.jp/contests/abc322/tasks/abc322_gAssert(a >= 0 && n >= 0);if (n == 0 || a == 1) return 1;if (a == 0) return 0;ll val = 1;for (ll i = 0; i < n; i++) {// val * a >= infif (val >= (inf + a - 1) / a) {val = inf;break;}val *= a;}return val;}//【括弧列 → 木】O(n)/** 括弧列 s[0..2n) について,ネスト関係を表した 0 を根とする有向根付き木 g[0..n] を返す.* i 番目の頂点は対応する括弧の組 s[ls[i]] = '(', s[rs[i]] = ')' に対応し,子ほどネストが深いものとする.* ただし ls[0] = -1, rs[0] = 2n とする.*/Graph parenthesis_tree(const string& s, vi* ls = nullptr, vi* rs = nullptr) {// verify : https://atcoder.jp/contests/discovery2016-final/tasks/discovery_2016_final_cint n = sz(s) / 2;Graph g(n + 1);if (ls) ls->resize(n + 1);if (rs) rs->resize(n + 1);int id = 1;stack<pii> stk; // ('(' の位置, 木の頂点番号)stk.push({ -1, 0 });if (ls) (*ls)[0] = -1;if (rs) (*rs)[0] = 2 * n;rep(i, 2 * n) {if (s[i] == '(') {stk.push({ i, id++ });}else {auto [l, v] = stk.top(); stk.pop();g[stk.top().second].push_back(v);if (ls) (*ls)[v] = l;if (rs) (*rs)[v] = i;}}return g;}ll solve(string s) {int n = sz(s);ll res = 0;vi acc(n + 1); int l = 0;repir(i, n - 1, 0) {acc[i] = acc[i + 1] + (s[i] == ')' ? 1 : -1);if (acc[i] < 0) chmax(l, i + 1);}repi(i, 0, n) {chmax(l, i);if (acc[i] == 0) break;}dump(acc);if (l > 0) {s.erase(s.begin(), s.begin() + l);acc.erase(acc.begin(), acc.begin() + l);res++;}dump(s); dump(acc);auto g = parenthesis_tree(s);dumpel(g);function<ll(int)> dfs = [&](int s) {ll e = 0;repe(t, g[s]) {e += dfs(t);chmin(e, INFL);}ll res = truncated_pow(2, e);dump(s, res);return res;};repe(t, g[0]) {res += dfs(t);chmin(res, INFL);}return res;}void bug_find() {#ifdef _MSC_VER// 合わない入力例を見つける.mt19937_64 mt;mt.seed((int)time(NULL));uniform_int_distribution<int> rnd(0, 1);mute_dump = true;repi(n, 1, 11) {repb(set, n) {string s;rep(i, n) s += "()"[get(set, i)];auto res_naive = naive(s);auto res_solve = solve(s);if (res_naive != res_solve) {cout << "----------error!----------" << endl;cout << "input:" << endl;cout << s << endl;cout << "results:" << endl;cout << res_naive << endl;cout << res_solve << endl;cout << "--------------------------" << endl;}}}mute_dump = false;exit(0);#endif}int main() {input_from_file("input.txt");// output_to_file("output.txt");bug_find();string s;cin >> s;dump(s); dump("-----");dump(naive(s)); dump("-----");ll res = solve(s);if (res > (ll)1e18) EXIT("INFTY");EXIT(res);}