Submission #883790

#	Time	Username	Problem	Language	Result	Execution time	Memory
883790		marvinthang	Stray Cat (JOI20_stray)	C++17	15 / 100	395 ms	524288 KiB

Anthony

/*************************************
*    author: marvinthang             *
*    created: 06.12.2023 09:33:05    *
*************************************/

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

using namespace std;

#define                  fi  first
#define                  se  second
#define                left  ___left
#define               right  ___right
#define                TIME  (1.0 * clock() / CLOCKS_PER_SEC)
#define             MASK(i)  (1LL << (i))
#define           BIT(x, i)  ((x) >> (i) & 1)
#define  __builtin_popcount  __builtin_popcountll
#define              ALL(v)  (v).begin(), (v).end()
#define           REP(i, n)  for (int i = 0, _n = (n); i < _n; ++i)
#define          REPD(i, n)  for (int i = (n); i-- > 0; )
#define        FOR(i, a, b)  for (int i = (a), _b = (b); i < _b; ++i) 
#define       FORD(i, b, a)  for (int i = (b), _a = (a); --i >= _a; ) 
#define       FORE(i, a, b)  for (int i = (a), _b = (b); i <= _b; ++i) 
#define      FORDE(i, b, a)  for (int i = (b), _a = (a); i >= _a; --i) 
#define        scan_op(...)  istream & operator >> (istream &in, __VA_ARGS__ &u)
#define       print_op(...)  ostream & operator << (ostream &out, const __VA_ARGS__ &u)
#ifdef LOCAL
    #include "debug.h"
#else
    #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
    #define DB(...) 23
    #define db(...) 23
    #define debug(...) 23
#endif

template <class U, class V> scan_op(pair <U, V>)  { return in >> u.first >> u.second; }
template <class T> scan_op(vector <T>)  { for (size_t i = 0; i < u.size(); ++i) in >> u[i]; return in; }
template <class U, class V> print_op(pair <U, V>)  { return out << '(' << u.first << ", " << u.second << ')'; }
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 ...U> print_op(tuple<U...>) { return print_tuple_utils<0, tuple<U...>>(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 (__typeof(con.begin()) it = con.begin(); it != con.end(); ++it) out << (it == con.begin() ? "" : ", ") << *it; return out << '}'; }

namespace {

}

vector<int> Mark(int N, int M, int A, int B, vector<int> U, vector<int> V) {
	vector <vector <int>> adj(N);
	REP(i, M) {
		adj[U[i]].push_back(i);
		adj[V[i]].push_back(i);
	}
	vector <int> res(M);
	if (A >= 3) {
		queue <int> q;
		q.push(0);
		vector <int> dist(N, -1);
		dist[0] = 0;
		while (!q.empty()){
			int u = q.front(); q.pop();
			for (int i: adj[u]) {
				int v = U[i] ^ V[i] ^ u;
				if (dist[v] == -1) {
					dist[v] = dist[u] + 1;
					q.push(v);
				}
				if (dist[v] == dist[u] + 1) res[i] = dist[v] % 3;
				else if (dist[v] == dist[u]) res[i] = (dist[u] + 1) % 3;
			}
		}
	} else {
		int pattern = 11; // 001011
		int pos_0 = __builtin_ctz(pattern + 1) - 1;
		int pos_1 = __builtin_ctz(pattern);
		function<void(int, int, int)> dfs = [&] (int u, int par, int t) {
			if (adj[u].size() >= 3) {
				if (BIT(pattern, t)) t = -2;
				else t = -1;
				if (t >= 0) t = -1;
				for (int i: adj[u]) {
					int v = U[i] ^ V[i] ^ u;
					res[i] = -1 - t;
					dfs(v, u, -3 - t);
				}
			} else {
				if (t == -1) t = pos_0;
				else t = pos_1;
				for (int i: adj[u]) {
					int v = U[i] ^ V[i] ^ u;
					if (v == par) continue;
					res[i] = BIT(pattern, t);
					dfs(v, u, (t + 1) % 6);
				}
			}
		};
		dfs(0, 0, 0);
	}
	return res;
}

Catherine

#include "Catherine.h"
/*************************************
*    author: marvinthang             *
*    created: 06.12.2023 09:38:51    *
*************************************/

#include <bits/stdc++.h>

using namespace std;

#define                  fi  first
#define                  se  second
#define                left  ___left
#define               right  ___right
#define                TIME  (1.0 * clock() / CLOCKS_PER_SEC)
#define             MASK(i)  (1LL << (i))
#define           BIT(x, i)  ((x) >> (i) & 1)
#define  __builtin_popcount  __builtin_popcountll
#define              ALL(v)  (v).begin(), (v).end()
#define           REP(i, n)  for (int i = 0, _n = (n); i < _n; ++i)
#define          REPD(i, n)  for (int i = (n); i-- > 0; )
#define        FOR(i, a, b)  for (int i = (a), _b = (b); i < _b; ++i) 
#define       FORD(i, b, a)  for (int i = (b), _a = (a); --i >= _a; ) 
#define       FORE(i, a, b)  for (int i = (a), _b = (b); i <= _b; ++i) 
#define      FORDE(i, b, a)  for (int i = (b), _a = (a); i >= _a; --i) 
#define        scan_op(...)  istream & operator >> (istream &in, __VA_ARGS__ &u)
#define       print_op(...)  ostream & operator << (ostream &out, const __VA_ARGS__ &u)
#ifdef LOCAL
    #include "debug.h"
#else
    #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
    #define DB(...) 23
    #define db(...) 23
    #define debug(...) 23
#endif

template <class U, class V> scan_op(pair <U, V>)  { return in >> u.first >> u.second; }
template <class T> scan_op(vector <T>)  { for (size_t i = 0; i < u.size(); ++i) in >> u[i]; return in; }
template <class U, class V> print_op(pair <U, V>)  { return out << '(' << u.first << ", " << u.second << ')'; }
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 ...U> print_op(tuple<U...>) { return print_tuple_utils<0, tuple<U...>>(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 (__typeof(con.begin()) it = con.begin(); it != con.end(); ++it) out << (it == con.begin() ? "" : ", ") << *it; return out << '}'; }

// end of template

namespace {
	int A, cur_mask, len, last;
	set <int> exist[7];
}

void Init(int A, int B) {
	::A = A;
	vector <int> pattern {0, 0, 1, 0, 1, 1};
	pattern.insert(pattern.end(), ALL(pattern));
	exist[0].insert(0);
	REP(i, 6) {
		int mask = 0;
		REP(j, 6) {
			mask = mask << 1 | pattern[i + j];
			exist[j + 1].insert(mask);
		}
	}
	cur_mask = len = 0;
	last = -1;
}

int Move(vector<int> y) {
	if (A >= 3) {
		REP(i, 3) if (y[i] && !y[(i + 2) % 3]) return i;
	} else {
		if (y[0] + y[1] + (last >= 0) >= 3) {
			len = 6;
			if (!y[0] || !y[1]) return -1;
			if (last == -1) return last = y[1] == 1;
			return last = !last;
		}
		if (y[0] + y[1] + (last >= 0) == 1) {
			len = 6;
			return last >= 0 ? -1 : last = y[1] == 1;
		}
		REP(i, 2) if (y[i]) {
			cur_mask = cur_mask << 1 | i;
			if (len < 6 && !exist[++len].count(cur_mask)) {
				len = 6;
				return -1;
			}
			return last = i;
		}
	}
}

Compilation message (stderr)

Catherine.cpp: In function 'int Move(std::vector<int>)':
Catherine.cpp:90:1: warning: control reaches end of non-void function [-Wreturn-type]
   90 | }
      | ^

• Subtask 1: 2 / 2
• Subtask 2: 2 / 2
• Subtask 3: 2 / 2
• Subtask 4: 9 / 9
• Subtask 5: 0 / 5
• Subtask 6: 0 / 71
• Subtask 7: 0 / 9