Submission #1776329
Source Code Expand
#include <bits/stdc++.h> using namespace std; #define sp ' ' #define endl '\n' #define N 100005 vector<vector<int> > a(N); int n; int dfs(int u, int p){ int ret = u; for(auto v:a[u]){ if (v==p) continue; int rec = dfs(v,u); if (rec!=0){ if (ret!=0){ ret = 0; } else{ cout << "First" << endl; exit(0); } } } return ret; } int main(){ cin >> n; for(int i=1; i<=n-1; i++){ int u,v; cin >> u >> v; a[u].push_back(v); a[v].push_back(u); } if (dfs(1,1)==0) cout << "Second" << endl; else cout << "First" << endl; }
Submission Info
Submission Time | |
---|---|
Task | D - Black and White Tree |
User | UncleGrandpa925 |
Language | C++14 (GCC 5.4.1) |
Score | 900 |
Code Size | 735 Byte |
Status | AC |
Exec Time | 94 ms |
Memory | 5760 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 900 / 900 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | sample1.txt, sample2.txt, sample3.txt |
All | sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in3.txt, in30.txt, in31.txt, in32.txt, in33.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | AC | 88 ms | 5760 KB |
in10.txt | AC | 87 ms | 5760 KB |
in11.txt | AC | 92 ms | 5760 KB |
in12.txt | AC | 10 ms | 2944 KB |
in13.txt | AC | 91 ms | 5760 KB |
in14.txt | AC | 94 ms | 5760 KB |
in15.txt | AC | 90 ms | 5760 KB |
in16.txt | AC | 93 ms | 5760 KB |
in17.txt | AC | 91 ms | 5760 KB |
in18.txt | AC | 89 ms | 5760 KB |
in19.txt | AC | 89 ms | 5760 KB |
in2.txt | AC | 85 ms | 5760 KB |
in20.txt | AC | 90 ms | 5760 KB |
in21.txt | AC | 85 ms | 5760 KB |
in22.txt | AC | 86 ms | 5760 KB |
in23.txt | AC | 88 ms | 5760 KB |
in24.txt | AC | 86 ms | 5760 KB |
in25.txt | AC | 91 ms | 5760 KB |
in26.txt | AC | 85 ms | 5760 KB |
in27.txt | AC | 88 ms | 5760 KB |
in28.txt | AC | 2 ms | 2560 KB |
in29.txt | AC | 90 ms | 5760 KB |
in3.txt | AC | 88 ms | 5760 KB |
in30.txt | AC | 90 ms | 5760 KB |
in31.txt | AC | 88 ms | 5760 KB |
in32.txt | AC | 88 ms | 5760 KB |
in33.txt | AC | 89 ms | 5760 KB |
in4.txt | AC | 86 ms | 5760 KB |
in5.txt | AC | 88 ms | 5760 KB |
in6.txt | AC | 86 ms | 5760 KB |
in7.txt | AC | 86 ms | 5760 KB |
in8.txt | AC | 86 ms | 5760 KB |
in9.txt | AC | 87 ms | 5760 KB |
sample1.txt | AC | 2 ms | 2560 KB |
sample2.txt | AC | 2 ms | 2560 KB |
sample3.txt | AC | 2 ms | 2560 KB |