Submission #768153

#	Time	Username	Problem	Language	Result	Execution time	Memory
768153		marvinthang	Two Transportations (JOI19_transportations)	C++17	100 / 100	650 ms	48772 KiB

Azer

/*************************************
*    author: marvinthang             *
*    created: 27.06.2023 19:27:42    *
*************************************/

#include "Azer.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--; )
#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 << '}'; }
template <class A, class B> bool minimize(A &a, B b)  { if (a > b) { a = b; return true; } return false; }
template <class A, class B> bool maximize(A &a, B b)  { if (a < b) { a = b; return true; } return false; }

// end of template

namespace {

	const int INF = MASK(20) - 1;

	int N, cnt, pu, last, pv, pdv;
	vector <bool> used;
	vector <int> dist;
	vector <vector <pair <int, int>>> adj;

	int find_min(void) {
		int u = -1;
		REP(i, N) if (!used[i] && (u == -1 || dist[i] < dist[u])) u = i;
		return u;
	}

	void dijkstra(int u) {
		used[u] = true;
		last = dist[u];
		for (auto [w, v]: adj[u]) minimize(dist[v], dist[u] + w);
	}

	void send_min(void) {
		int u = find_min();
		if (u == -1) return;
		pu = u;
		int x = min(dist[u] - last, 501);
		REP(i, 9) SendA(BIT(x, i));
	}

}  // namespace


void InitA(int N, int A, vector <int> U, vector <int> V, vector <int> C) {
	::N = N;
	cnt = pv = pdv = 0;
	used.resize(N);
	dist.assign(N, INF);
	adj.resize(N);
	REP(i, A) {
		adj[U[i]].emplace_back(C[i], V[i]);
		adj[V[i]].emplace_back(C[i], U[i]);
	}
	dist[0] = 0;
	dijkstra(0);
	send_min();
}

void ReceiveA(bool x) {
	if (cnt < 9) {
		if (x) pdv |= MASK(cnt);
		if (++cnt == 9) {
			pdv += last;
			if (dist[pu] <= pdv) {
				REP(i, 11) SendA(BIT(pu, i));
				dijkstra(pu);
				send_min();
				cnt = 0;
				pdv = 0;
			} else pv = 0;
		}
	} else {
		if (x) pv |= MASK(cnt - 9);
		if (++cnt == 20) {
			minimize(dist[pv], pdv);
			dijkstra(pv);
			send_min();
			cnt = 0;
			pdv = 0;
		}
	}
}

vector <int> Answer() {
	return dist;
}

Baijan

/*************************************
*    author: marvinthang             *
*    created: 27.06.2023 19:28:31    *
*************************************/

#include "Baijan.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--; )
#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 << '}'; }
template <class A, class B> bool minimize(A &a, B b)  { if (a > b) { a = b; return true; } return false; }
template <class A, class B> bool maximize(A &a, B b)  { if (a < b) { a = b; return true; } return false; }

// end of template

namespace {

	const int INF = MASK(20) - 1;

	int N, cnt, pu, last, pv, pdv;
	vector <bool> used;
	vector <int> dist;
	vector <vector <pair <int, int>>> adj;

	int find_min(void) {
		int u = -1;
		REP(i, N) if (!used[i] && (u == -1 || dist[i] < dist[u])) u = i;
		return u;
	}

	void dijkstra(int u) {
		used[u] = true;
		last = dist[u];
		for (auto [w, v]: adj[u]) minimize(dist[v], dist[u] + w);
	}

	void send_min(void) {
		int u = find_min();
		if (u == -1) return;
		pu = u;
		int x = min(dist[u] - last, 501);
		REP(i, 9) SendB(BIT(x, i));
	}

}  // namespace

void InitB(int N, int B, vector <int> S, vector <int> T, vector <int> D) {
	::N = N;
	cnt = pv = pdv = 0;
	used.resize(N);
	dist.assign(N, INF);
	adj.resize(N);
	REP(i, B) {
		adj[S[i]].emplace_back(D[i], T[i]);
		adj[T[i]].emplace_back(D[i], S[i]);
	}
	dist[0] = 0;
	dijkstra(0);
	send_min();
}

void ReceiveB(bool x) {
	if (cnt < 9) {
		if (x) pdv |= MASK(cnt);
		if (++cnt == 9) {
			pdv += last;
			if (dist[pu] < pdv) {
				REP(i, 11) SendB(BIT(pu, i));
				dijkstra(pu);
				send_min();
				cnt = 0;
				pdv = 0;
			} else pv = 0;
		}
	} else {
		if (x) pv |= MASK(cnt - 9);
		if (++cnt == 20) {
			minimize(dist[pv], pdv);
			dijkstra(pv);
			send_min();
			cnt = 0;
			pdv = 0;
		}
	}
}

• Subtask 1: 6 / 6
• Subtask 2: 8 / 8
• Subtask 3: 8 / 8
• Subtask 4: 38 / 38
• Subtask 5: 14 / 14
• Subtask 6: 10 / 10
• Subtask 7: 16 / 16