Submission #720588

#	Time	Username	Problem	Language	Result	Execution time	Memory
720588		qwerasdfzxcl	Two Transportations (JOI19_transportations)	C++17	100 / 100	831 ms	48972 KiB

Azer

#include "Azer.h"
#include <bits/stdc++.h>
constexpr int INF = 1e9 + 100;

using namespace std;
typedef long long ll;

namespace {

vector<pair<int, int>> adj[2020];
int n, dist[2020], visited[2020];
int mx, valA, valB, idxA, idxB, typ;

vector<int> buf;

}  // namespace


void updateA(int x, int v){
	visited[x] = 1;
	dist[x] = mx + v;
	mx += v;

	for (auto &[nx, w]:adj[x]) dist[nx] = min(dist[nx], dist[x] + w);
}

void InitA(int N, int A, std::vector<int> U, std::vector<int> V,
           std::vector<int> C) {
	n = N;
	for (int i=0;i<A;i++){
		adj[U[i]+1].emplace_back(V[i]+1, C[i]);
		adj[V[i]+1].emplace_back(U[i]+1, C[i]);
	}

	mx = 0, typ = 1;
	fill(dist+2, dist+n+1, INF);
	updateA(1, 0);
}

void cmpA(){
	valA = INF, valB = 0;
	idxA = -1;

	for (int i=1;i<=n;i++) if (!visited[i] && valA > dist[i]) valA = dist[i], idxA = i;
	valA = min(valA-mx, 511);
	for (int i=0;i<9;i++) if (buf[i]) valB |= 1<<i;
	buf.clear();

	for (int i=0;i<9;i++) SendA(valA&(1<<i));

	if (valA <= valB){
		for (int i=0;i<11;i++) SendA(idxA&(1<<i));
		updateA(idxA, valA);
	}
	else{
		typ = 2;
	}
}

void getA(){
	idxB = 0;
	for (int i=0;i<11;i++) if (buf[i]) idxB |= 1<<i;
	buf.clear();

	updateA(idxB, valB);
	typ = 1;
}

void ReceiveA(bool x) {
	buf.push_back(x);
	if (typ==1 && buf.size()==9) cmpA();
	if (typ==2 && buf.size()==11) getA();
}

std::vector<int> Answer() {
	vector<int> ans;
	for (int i=1;i<=n;i++) ans.push_back(dist[i]);
	return ans;
}

Baijan

#include "Baijan.h"
#include <bits/stdc++.h>
constexpr int INF = 1e9 + 100;

using namespace std;
typedef long long ll;

namespace {

vector<pair<int, int>> adj[2020];
int n, dist[2020], visited[2020];
int mx, valA, valB, idxA, idxB, typ;
int cntB;

vector<int> buf;

}  // namespace

void updateB(int x, int v){
	++cntB;
	visited[x] = 1;
	dist[x] = mx + v;
	mx += v;

	for (auto &[nx, w]:adj[x]) dist[nx] = min(dist[nx], dist[x] + w);

	valB = INF, idxB = -1;
	for (int i=1;i<=n;i++) if (!visited[i] && valB > dist[i]) valB = dist[i], idxB = i;
	valB = min(valB-mx, 511);
	if (cntB==n) return;

	for (int i=0;i<9;i++) SendB(valB&(1<<i));
}

void InitB(int N, int B, std::vector<int> S, std::vector<int> T,
           std::vector<int> D) {
	n = N;
	for (int i=0;i<B;i++){
		adj[S[i]+1].emplace_back(T[i]+1, D[i]);
		adj[T[i]+1].emplace_back(S[i]+1, D[i]);
	}

	mx = 0, typ = 1;
	fill(dist+2, dist+n+1, INF);
	updateB(1, 0);
}

void checkB(){
	valA = 0;
	for (int i=0;i<9;i++) if (buf[i]) valA |= 1<<i;
	buf.clear();

	if (valA <= valB){
		typ = 2;
	}
	else{
		for (int i=0;i<11;i++) SendB(idxB&(1<<i));
		updateB(idxB, valB);
	}
}

void getB(){
	idxA = 0;
	for (int i=0;i<11;i++) if (buf[i]) idxA |= 1<<i;
	buf.clear();

	updateB(idxA, valA);
	typ = 1;
}

void ReceiveB(bool y) {
	buf.push_back(y);
	if (typ==1 && buf.size()==9) checkB();
	if (typ==2 && buf.size()==11) getB();
}

• 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