Submission #939092

#	Time	Username	Problem	Language	Result	Execution time	Memory
939092		guagua0407	Stray Cat (JOI20_stray)	C++17	0 / 100	28 ms	16244 KiB

Anthony

#include "Anthony.h"
#include <vector>
#include<bits/stdc++.h>

namespace {

using namespace std;
#define f first
#define s second
int A,B;
const int mxn=2e4+5;
vector<pair<int,int>> adj[mxn];
vector<int> ans;
bool visited[mxn];
int depth[mxn];
int par[mxn];

void dfs(int v,int p=-1,int c=0){
    visited[v]=true;
    for(auto u:adj[v]){
        if(visited[u.f]){
            continue;
        }
        ans[u.s]=c^1;
        depth[u.f]=depth[v]+1;
        dfs(u.f,v,ans[u.s]);
    }
}

void bfs(){
    queue<pair<int,int>> q;
    q.push({0,0});
    visited[0]=true;
    while(!q.empty()){
        int v=q.front().f;
        int c=q.front().s;
        q.pop();
        for(auto u:adj[v]){
            if(visited[u.f]){
                if(u.f!=par[v]){
                    if(depth[v]==depth[u.f]){
                        ans[u.s]=(c+1)%3;
                    }
                    else if(depth[v]<depth[u.f]){
                        ans[u.s]=(c+1)%3;
                    }
                }
                continue;
            }
            visited[u.f]=true;
            ans[u.s]=(c+1)%3;
            depth[u.f]=depth[v]+1;
            q.push({u.f,ans[u.s]});
        }
    }
}

}  // namespace

std::vector<int> Mark(int N, int M, int A, int B,std::vector<int> U, std::vector<int> V) {
    ::A = A;
    ::B = B;
    ans.resize(M);
    for(int i=0;i<M;i++){
        adj[U[i]].push_back({V[i],i});
        adj[V[i]].push_back({U[i],i});
    }
    dfs(0);
    return ans;
}

Catherine

#include "Catherine.h"
#include <vector>
#include<bits/stdc++.h>
namespace {
using namespace std;
int A, B;
int variable_example = 0;

}  // namespace

void Init(int A, int B) {
  ::A = A;
  ::B = B;
}

int Move(std::vector<int> y) {
    mt19937 rng(time(NULL));
    vector<int> pos;
    for(int i=0;i<(int)y.size();i++){
        if(y[i]>1) pos.push_back(i);
    }
    if((int)pos.size()==1) return pos[0]^1;
    vector<int> pos2;
    for(int i=0;i<(int)y.size();i++){
        if(y[i]==1) pos2.push_back(i);
    }
    if((int)pos2.size()==1) return pos2[0];
    return std::uniform_int_distribution<int>(0, 1)(rng);
}

Compilation message (stderr)

Anthony.cpp:30:6: warning: 'void {anonymous}::bfs()' defined but not used [-Wunused-function]
   30 | void bfs(){
      |      ^~~

Catherine.cpp:7:5: warning: '{anonymous}::variable_example' defined but not used [-Wunused-variable]
    7 | int variable_example = 0;
      |     ^~~~~~~~~~~~~~~~

• Subtask 1: 0 / 2
• Subtask 2: 0 / 2
• Subtask 3: 0 / 2
• Subtask 4: 0 / 9
• Subtask 5: 0 / 5
• Subtask 6: 0 / 71
• Subtask 7: 0 / 9