Submission #899612

#	Time	Username	Problem	Language	Result	Execution time	Memory
899612		marvinthang	Lockpicking (IOI23_lockpicking)	C++17	100 / 100	7 ms	3416 KiB

lockpicking

#include "lockpicking.h"
#include <bits/stdc++.h>

using namespace std;

#define fi first
#define se second
#define left ___left
#define right ___right
#define ALL(v) (v).begin(), (v).end()
#define REP(i, n) for (int _n = (n), i = 0; i < _n; ++i)
#define REPD(i, n) for (int i = (n); i-- > 0; )
#define FOR(i, a, b) for (int _b = (b), i = (a); i < _b; ++i)
#define FORD(i, b, a) for (int _a = (a), i = (b); i-- > _a; )
#define FORE(i, a, b) for (int _b = (b), i = (a); i <= _b; ++i)
#define FORDE(i, b, a) for (int _a = (a), i = (b); i >= _a; --i)
#define print_op(...) ostream & operator << (ostream &out, const __VA_ARGS__ &u)

template <class U, class V> print_op(pair <U, V>) { return out << '(' << u.fi << ", " << u.se << ')'; }
template <size_t i, class T> ostream & print_tuple_utils(ostream &out, const T &tup) {
	if constexpr(i == tuple_size<T>::value) return out << ')';
	else return print_tuple_utils <i + 1, T>(out << (!i ? "(" : ", ") << get<i>(tup), tup);
}
template <class ...T> print_op(tuple <T...>) { return print_tuple_utils <0, tuple <T...>> (out, u); }
template <class Con, class = decltype(begin(declval<Con>()))> typename enable_if <!is_same<Con, string>::value, ostream &>::type operator << (ostream &out, const Con &con) {
	out << '{';
	for (auto it = con.begin(); it != con.end(); ++it) out << (it == con.begin() ? "" : ", ") << *it;
	return out << '}';
}

vector <string> vec_splitter(string s) {
	s += ", ";
	vector <string> res;
	while (!s.empty()) {
		size_t p = s.find(", ");
		res.push_back(s.substr(0, p));
		s = s.substr(p + 2);
	}
	return res;
}
template <class ...T> void debug_out(int line, vector <string> v, T&&... args) {
	cerr << "L" << line << ": ";
	int i = 0;
	(..., (cerr << "[" << v[i++] << " = " << args << "]"));
	cerr << '\n';
}

#define debug(...) debug_out(__LINE__, vec_splitter(#__VA_ARGS__), __VA_ARGS__)

void construct_card(int N, vector <int> A, vector <vector <int>> S) {
	int M = 1;
	vector B(N * N + 5, -1);
	vector T(N * N + 5, vector(2, -1));
	B[0] = A[0];
	vector <int> visited(N);
	REP(s, N) {
		int i = s, j = 0;
		int cnt = 0;
		while (T[j][A[i]] != -1) {
			int x = A[i], y = B[j];
			i = S[i][y];
			j = T[j][x];
			if (++cnt == N) break;
		}
		if (cnt == N) continue;
		int x = A[i], y = B[j];
		i = S[i][y];
		j = T[j][x] = M++;
		fill(ALL(visited), -1);
		REP(love, N) {
		// while (visited[i] == -1) {
			int x = A[i];
			B[j] = x;
			i = S[i][x];
			visited[i] = j = T[j][x] = M++;
		}
		B[j] = A[i];
		T[j][A[i]] = visited[S[i][A[i]]];
	}
	B.resize(M);
	T.resize(M);
	REP(i, M) {
		REP(j, 2) if (T[i][j] == -1) T[i][j] = 0;
		if (B[i] == -1) B[i] = 0;
	}
	define_states(M, B, T, 0);
}

• Subtask 1: 21 / 21
• Subtask 2: 30 / 30
• Subtask 3: 20 / 20
• Subtask 4: 29 / 29