제출 #1136901

#제출 시각아이디문제언어결과실행 시간메모리
1136901MatbubbleTriumphal arch (POI13_luk)C++20
0 / 100
83 ms17344 KiB
#include <iostream> #include <iomanip> #include <string> #include <math.h> #include <algorithm> #include <cstring> #include <numeric> #include <vector> #include <bitset> #include <map> #include <set> #include <queue> #include <deque> #include <stack> #include <unordered_map> #include <unordered_set> using namespace std; #define dbg(x) cerr<<#x<<": "<<x<<"\n"; /* MC lover */ void solve(){ int n; cin>>n; int ans=0; vector<vector<int>>g(n+1); for(int i=1 ; i<n ; i++){ int a, b; cin>>a>>b; g[a].push_back(b); g[b].push_back(a); } vector<bool>vis(n+1); auto dfs=[&](auto &&self, int u, int root)->void{ ans=max(ans, (int)g[u].size()-1); for(int v:g[u]){ if(v==root) continue; self(self, v, u); } }; dfs(dfs, 1, -1); cout<<ans<<"\n"; } int main(){ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); solve(); return 0; }
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