oj.uz

답안 #1082581

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1082581 2024-08-31T16:24:01 Z KALARRY Easter Eggs (info1cup17_eastereggs) C++14
0 / 100
 1 ms 852 KB 
//chockolateman

#include<bits/stdc++.h>
#include "grader.h"


using namespace std;

int n,total = 512,counter;
bool asked[520];
vector<int> adj[520];
vector<int> to_ask;
bool possible[520];

void init(int N)
{
    n = N;
    for(int i = 1 ; i <= n ; i++)
        adj[i].clear();
    total = 0;
    for(int i = 1 ; i <= n ; i++)
    {
        asked[i] = false;
        possible[i] = true;
        total++;
    }
}

void dfs(int v,int p)
{
    counter += possible[v];
    to_ask.push_back(v);
    asked[v] = true;
    for(auto u : adj[v])
    {
        if(counter==total/2)
            return;
        if(u!=p)
            dfs(u,v);
    }
}

int findEgg(int N, vector < pair < int, int > > bridges)
{
    init(N);
    for(auto e : bridges)
    {
        int a = e.first;
        int b = e.second;
        adj[a].push_back(b);
        adj[b].push_back(a);
    }
    while(total > 1)
    {
        dfs(1,1);
        int res = query(to_ask);
        if(res==1)
        {
            for(int i = 1 ; i <= N ; i++)
                possible[i] &= asked[i];
        }
        else
            for(auto v : to_ask)
                possible[v] = false;
        
        to_ask.clear();
        counter = 0;
        total = 0;
        for(int i = 1 ; i <= N ; i++)
        {
            total += possible[i];
            asked[i] = false;
        }
    }
}

Compilation message

eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:75:1: warning: no return statement in function returning non-void [-Wreturn-type]
   75 | }
      | ^

Subtask #1
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 852 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 600 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 600 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -