Submission #943620

#	Time	Username	Problem	Language	Result	Execution time	Memory
943620		yeediot	Two Transportations (JOI19_transportations)	C++17	0 / 100	6 ms	16204 KiB

Azer

#include "Azer.h"
#include<bits/stdc++.h>
using namespace std;
#define S second
#define F first
namespace {
    const int mxn=5e5+5;
    int cur=0,bit=0,n;
    vector<pair<int,int>>adj[mxn];
    vector<int>dis(mxn);
    int prev=0;
    vector<bool>vis(mxn);
    bool first=1;
    pair<int,int>mn={(1<<9)-1,(1<<9)-1};
    void send(int a,int b){
        b--;
        for(;b>=0;b--){
            SendA(a>>b&1);
        }
    }
    void gmn(){
        dis[mn.S]=prev+mn.F;
        prev=dis[mn.S];
        vis[mn.S]=1;
        for(auto [u,d]:adj[mn.S]){
            dis[u]=min(dis[u],dis[mn.S]+d);
        }
        for(int i=0;i<n;i++){
            if(vis[i])continue;
            mn=min(mn,{dis[i]-prev,i});
        }
    }
    void gdis(){
        if(cur==(1<<9)-1){
            send(mn.S,11);
            gmn();
        }
        else{
            mn.F=cur;
            first=0;
        }
        cur=bit=0;
    }
    void gid(){
        mn.S=cur;
        gmn();
        cur=bit=0;
        first=1;
    }
}  // namespace
void InitA(int N, int A, std::vector<int> U, std::vector<int> V,std::vector<int> C) {
    for(int i=0;i<A;i++){
        adj[V[i]].push_back({U[i],C[i]});
        adj[U[i]].push_back({V[i],C[i]});
    }
    dis[0]=0;
    vis[0]=1;
    for(int i=1;i<=N;i++){
        dis[i]=1e18;
        vis[i]=0;
    }
    int v=0;
    for(auto [u,d]:adj[v]){
        dis[u]=min(dis[u],dis[v]+d);
        mn=min(mn,{dis[u],u});
    }
    send(mn.F,9);
}

void ReceiveA(bool x) {
    cur=cur*2+x;
    bit++;
    if(bit==9 and first){
        gdis();
    }
    else if(bit==11){
        gid();
    }
}

std::vector<int> Answer() {
    return dis;
}

Baijan

#include "Baijan.h"
#include<bits/stdc++.h>
using namespace std;
#define S second
#define F first
namespace {
    const int mxn=5e5+5;
    int cur=0,bit=0,n;
    vector<pair<int,int>>adj[mxn];
    vector<int>dis(mxn);
    int prev=0;
    vector<bool>vis(mxn);
    bool first=1;
    pair<int,int>mn={(1<<9)-1,(1<<9)-1};
    void send(int a,int b){
        b--;
        for(;b>=0;b--){
            SendB(a>>b&1);
        }
    }
    void gmn(){
        dis[mn.S]=prev+mn.F;
        prev=dis[mn.S];
        vis[mn.S]=1;
        for(auto [u,d]:adj[mn.S]){
            dis[u]=min(dis[u],dis[mn.S]+d);
        }
        for(int i=0;i<n;i++){
            if(vis[i])continue;
            mn=min(mn,{dis[i]-prev,i});
        }
    }
    void gdis(){
        if(mn.F>cur){
            mn.F=cur;
            send((1<<9)-1,9);
        }
        else{
            send(mn.F,9);
            send(mn.S,11);
            gmn();
            first=0;
        }
        cur=bit=0;
    }
    void gid(){
        mn.S=cur;
        gmn();
        cur=bit=0;
        first=1;
    }
}  // namespace
void InitB(int N, int B, std::vector<int> U, std::vector<int> V,std::vector<int> C) {
    for(int i=0;i<B;i++){
        adj[V[i]].push_back({U[i],C[i]});
        adj[U[i]].push_back({V[i],C[i]});
    }
    n=N;
    dis[0]=0;
    vis[0]=1;
    for(int i=1;i<=N;i++){
        dis[i]=1e18;
        vis[i]=0;
    }
    int v=0;
    for(auto [u,d]:adj[v]){
        dis[u]=min(dis[u],dis[v]+d);
        mn=min(mn,{dis[u],u});
    }
}
void ReceiveB(bool x) {
    cur=cur*2+x;
    bit++;
    if(bit==9 and first){
        gdis();
    }
    else if(bit==11){
        gid();
    }
}

Compilation message (stderr)

Azer.cpp: In function 'void InitA(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
Azer.cpp:59:16: warning: overflow in conversion from 'double' to '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} changes value from '1.0e+18' to '2147483647' [-Woverflow]
   59 |         dis[i]=1e18;
      |                ^~~~

Baijan.cpp: In function 'void InitB(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
Baijan.cpp:62:16: warning: overflow in conversion from 'double' to '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} changes value from '1.0e+18' to '2147483647' [-Woverflow]
   62 |         dis[i]=1e18;
      |                ^~~~

• 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