Submission #781823

#	Time	Username	Problem	Language	Result	Execution time	Memory
781823		Dan4Life	Two Transportations (JOI19_transportations)	C++17	8 / 100	285 ms	6592 KiB

Azer

#include "Azer.h"
#include <bits/stdc++.h>
using namespace std;
using ar = array<int,2>;
using vi = vector<int>;
#define pb push_back

namespace {
	const int mxN = (int)2e3+10;
	int n,dis[mxN];
	vector<ar> adj[mxN];
	void dijkstra(){
		priority_queue<ar,vector<ar>,greater<ar>> pq;
		memset(dis,63,sizeof(dis));
		pq.push({0,0}); dis[0]=0;
		while(!pq.empty()){
			auto [D,a] = pq.top(); pq.pop();
			if(D!=dis[a]) continue;
			for(auto [b,w] : adj[a])
				if(dis[b]>dis[a]+w) 
					dis[b]=dis[a]+w,pq.push({dis[b],b});
		}
	}
	void Send(int x, int sz){
		for(int i = 0; i < sz; i++) 
			SendA((x>>i)&1);
	}
}

void InitA(int N, int A, vi U, vi V, vi C) {
	n = N; fill(dis,dis+mxN,0);
	for (int i = 0; i < A; ++i) {
		adj[U[i]].pb({V[i],C[i]});
		adj[V[i]].pb({U[i],C[i]});
	}
}

int u=0, v=0, c=0, xd=0;

void ReceiveA(bool x) {
	if(xd<11) v|=(1<<xd)*x;
	else c|=(1<<(xd-11))*x;
	xd++;
	if(xd==20){
		if(v!=(1<<11)-1) adj[u].pb({v,c}),adj[v].pb({u,c});
		xd = v = c = 0; u++;
	}
}

vi Answer() {
	dijkstra();
	vi ans(n,0);
	for(int k = 1; k < n; ++k)
		ans[k] = dis[k];
	return ans;
}

Baijan

#include "Baijan.h"
#include <bits/stdc++.h>
using namespace std;
using ar = array<int,2>;
using vi = vector<int>;
#define pb push_back

namespace {
	const int mxN = (int)2e3+10;
	int n,dis[mxN],par[mxN],W[mxN];
	vector<ar> adj[mxN];
	void dijkstra(){
		priority_queue<ar,vector<ar>,greater<ar>> pq;
		memset(dis,63,sizeof(dis));
		pq.push({0,0}); dis[0]=0;
		while(!pq.empty()){
			auto [D,a] = pq.top(); pq.pop();
			if(D!=dis[a]) continue;
			for(auto [b,w] : adj[a])
				if(dis[b]>dis[a]+w) 
					dis[b]=dis[a]+w,pq.push({dis[b],b});
		}
	}
	void Send(int x, int sz){
		for(int i = 0; i < sz; i++) 
			SendB((x>>i)&1);
	}
	void dfs(int s, int p){
		for(auto [u,w] : adj[s]){
			if(u!=p) par[u]=s,W[u]=w, dfs(u,s);
		}
	}
}

void InitB(int N, int B, vi U, vi V, vi C) {
	n = N; fill(dis,dis+mxN,0);
	fill(par,par+mxN,-1);
	for (int i = 0; i < B; ++i) {
		adj[U[i]].pb({V[i],C[i]});
		adj[V[i]].pb({U[i],C[i]});
	}
	for(int i = 0; i < n; i++)
		if(par[i]==-1) dfs(i,-1);
	for(int i = 0; i < n; i++){
		if(par[i]==-1) Send((1<<11)-1,11),Send(0,9);
		else Send(par[i],11),Send(W[i],9);
	}
}

void ReceiveB(bool y) {
	
}

Compilation message (stderr)

Azer.cpp:24:7: warning: 'void {anonymous}::Send(int, int)' defined but not used [-Wunused-function]
   24 |  void Send(int x, int sz){
      |       ^~~~

Baijan.cpp:12:7: warning: 'void {anonymous}::dijkstra()' defined but not used [-Wunused-function]
   12 |  void dijkstra(){
      |       ^~~~~~~~

• Subtask 1: 0 / 6
• Subtask 2: 0 / 8
• Subtask 3: 8 / 8
• Subtask 4: 0 / 38
• Subtask 5: 0 / 14
• Subtask 6: 0 / 10
• Subtask 7: 0 / 16