# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
766231 | 2023-06-25T11:53:59 Z | Ahmed57 | Easter Eggs (info1cup17_eastereggs) | C++17 | 0 ms | 0 KB |
#pragma GCC optimize("Ofast") #include <bits/stdc++.h> using namespace std; int findEgg(int N, vector < pair < int, int > > bridges){ queue<int> q; vector<int> adj[N+1]; for(auto i:bridges){ adj[i.first].push_back(i.second); adj[i.second].push_back(i.first); } q.push(1); int vis[N+1] = {0}; vis[1] = 1; vector<int> lol; while(!q.empty()){ int x= q.front(); lol.push_back(x); q.pop(); for(auto j:adj[x]){ if(!vis[j]){ q.push(j);vis[j] = 1; } } } int l = 1 , r = N , ans = 1e9; while(l<=r){ int mid = (l+r)/2; vector<int> xd; for(int i =0;i<mid;i++){ xd.push_back(lol[i]); } if(query(xd)){ ans = lol[mid-1]; r = mid-1; }else l = mid+1; } return ans; }