Submission #1319774

#	Time	Username	Problem	Language	Result	Execution time	Memory
1319774		g31nius	Easter Eggs (info1cup17_eastereggs)	C++20	0 / 100	7 ms	7244 KiB

eastereggs

#include <vector>
#include <map>
#include <utility>

using namespace std;

int query(vector<int> islands);

void dfs ( int node, vector <int> v, vector <int> adj[521], map <int, int> mp ) {
    mp[node] = 1;
    v.push_back ( node );
    for ( auto i: adj[node] ) {
        if ( mp[i] == 0 ) {
            dfs ( i, v, adj, mp );
        }
    }
}

int findEgg(int N, vector<pair<int, int>> bridges) {
    map <int, int> mp;
    vector <int> adj[521];
    vector< int> v; 
    for (auto& edge : bridges) { 
        adj[edge.first].push_back(edge.second);
        adj[edge.second].push_back(edge.first);
    }
    dfs ( 1, v, adj, mp );
    int st = 0, dr = N-1, mij;
    while ( st < dr ) {
        mij = (st+dr)/2;
        vector <int> v2;
        for ( int i = 0; i <= mij; i++ ) {
            v2.push_back(v[i]);
        }
        if ( query ( v2 ) == 1 ) {
            dr = mij;
        }
        else {
            st = mij;
        }
    }
    return dr;
}

• Subtask 1: 0 / 40
• Subtask 2: 0 / 40
• Subtask 3: 0 / 20