oj.uz

Submission #918350

# Submission time Handle Problem Language Result Execution time Memory
918350 2024-01-29T17:18:16 Z Ferid20072020 Easter Eggs (info1cup17_eastereggs) C++14
0 / 100
 10 ms 10052 KB 
#include <bits/stdc++.h>
#include "grader.h"

using namespace std;

const int up = 2e5 + 5;

vector<vector<int>> g(up);
vector<int> List;

void DFS(int node , int from){
    List.push_back(node);
    for(auto to : g[node]){
        if(to != from){
            DFS(to , node);
        }
    }
}

int findEgg (int N, vector < pair < int, int > > bridges)
{
    List.clear();
    int i;
    for(i=0 ; i<up ; i++){
        g[i].clear();
    }

    for(i=0 ; i<bridges.size() ; i++){
        int u = bridges[i].first;
        int v = bridges[i].second;
        g[u].push_back(v);
        g[v].push_back(u);
    }

    DFS(1 , 0);


    int l = 0 , r = N - 1;
    while(l < r){
        int mid = (l + r) / 2;
        vector<int> c;
        for(int i=l ; i<=mid ; i++){
            c.push_back(List[i]);
        }
        if(query(c) == 1){
            r = mid;
        }
        else{
            l = mid + 1;
        }
    }
    return List[l];
}

Compilation message

eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:28:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for(i=0 ; i<bridges.size() ; i++){
      |               ~^~~~~~~~~~~~~~~

Subtask #1
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4952 KB Number of queries: 4
2 Runtime error 6 ms 10012 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 10036 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 10 ms 10052 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -