Submission #779569

#	Time	Username	Problem	Language	Result	Execution time	Memory
779569		bachhoangxuan	Two Transportations (JOI19_transportations)	C++17	0 / 100	381 ms	792 KiB

Azer

#include "Azer.h"
#include <bits/stdc++.h>
using namespace std;
#define pii pair<int,int>

namespace {
    int N,cnt=0,pu=0,pv=0,cur=0,lst=0;
    vector<bool> used;
    vector<int> dist;
    vector<vector<pii>> edge;
    void d(int u){
        used[u]=true;lst=dist[u];
        for(auto [v,w]:edge[u]) dist[v]=min(dist[u],w);
    }
    void Send(){
        int u=-1;
        for(int i=0;i<N;i++) if(!used[i] && (u==-1 || dist[i]<dist[u])) u=i;
        if(u==-1) return;
        int x=min(dist[u]-lst,511);pu=u;
        for(int i=0;i<9;i++) SendA((x>>i)&1);
    }
}  // namespace

void InitA(int N, int A, vector<int> U, vector<int> V, vector<int> C) {
    ::N=N;
    used.resize(N);
    dist.assign(N,1e9);
    edge.resize(N);
    for(int i=0;i<A;i++){
        edge[U[i]].push_back({V[i],C[i]});
        edge[V[i]].push_back({U[i],C[i]});
    }
    dist[0]=0;d(0);
    Send();
}

void ReceiveA(bool x) {
    if(cnt<9){
        if(x) cur|=(1<<cnt);
        if(++cnt==9){
            cur+=lst;
            if(dist[pu]<=cur){
                for(int i=0;i<11;i++) SendA((pu>>i)&1);
                d(pu);Send();cnt=cur=0;
            }
            else pv=0;
        }
    }
    else{
        if(x) pv|=(1<<(cnt-9));
        if(++cnt==20){
            dist[pv]=min(dist[pv],cur);
            d(pv);Send();
            cnt=cur=0;
        }
    }
}

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

Baijan

#include "Baijan.h"
#include <bits/stdc++.h>
using namespace std;
#define pii pair<int,int>

namespace {
    int N,cnt=0,pu=0,pv=0,cur=0,lst=0;
    vector<bool> used;
    vector<int> dist;
    vector<vector<pii>> edge;
    void d(int u){
        used[u]=true;lst=dist[u];
        for(auto [v,w]:edge[u]) dist[v]=min(dist[u],w);
    }
    void Send(){
        int u=-1;
        for(int i=0;i<N;i++) if(!used[i] && (u==-1 || dist[i]<dist[u])) u=i;
        if(u==-1) return;
        int x=min(dist[u]-lst,511);pu=u;
        for(int i=0;i<9;i++) SendB((x>>i)&1);
    }
}  // namespace

void InitB(int N, int B, vector<int> U, vector<int> V, vector<int> C) {
    ::N=N;
    used.resize(N);
    dist.assign(N,1e9);
    edge.resize(N);
    for(int i=0;i<B;i++){
        edge[U[i]].push_back({V[i],C[i]});
        edge[V[i]].push_back({U[i],C[i]});
    }
    dist[0]=0;d(0);
    Send();
}

void ReceiveB(bool x) {
    if(cnt<9){
        if(x) cur|=(1<<cnt);
        if(++cnt==9){
            cur+=lst;
            if(dist[pu]<=cur){
                for(int i=0;i<11;i++) SendB((pu>>i)&1);
                d(pu);Send();cnt=cur=0;
            }
            else pv=0;
        }
    }
    else{
        if(x) pv|=(1<<(cnt-9));
        if(++cnt==20){
            dist[pv]=min(dist[pv],cur);
            d(pv);Send();
            cnt=cur=0;
        }
    }
}

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