Submission #1752640
Source Code Expand
#include<bits/stdc++.h> using namespace std; #define N 1111116 #define next nxt int n,x[N],y[N],next[N],p[N],f[N]; int travel(int x){ int ans=0; for (int t=p[x];t;t=next[t]) if (y[t]!=f[x]) f[y[t]]=x,ans+=travel(y[t]); return ans^1; } int read(){ int x=0,f=1;char ch=getchar(); for (;!isdigit(ch);ch=getchar()) if (ch=='-') f=-f; for (;isdigit(ch);ch=getchar()) x=x*10+ch-'0'; return x*f; } int main(){ n=read(); for (int i=1;i<=n-1;i++){ x[2*i-1]=y[2*i]=read(); y[2*i-1]=x[2*i]=read(); next[2*i-1]=p[x[2*i-1]];p[x[2*i-1]]=2*i-1; next[2*i]=p[x[2*i]];p[x[2*i]]=2*i; } printf(travel(1)?"First\n":"Second\n"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Black and White Tree |
User | Kuugo |
Language | C++14 (GCC 5.4.1) |
Score | 900 |
Code Size | 678 Byte |
Status | AC |
Exec Time | 16 ms |
Memory | 8832 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 | 15 ms | 8832 KB |
in10.txt | AC | 15 ms | 8832 KB |
in11.txt | AC | 15 ms | 8832 KB |
in12.txt | AC | 4 ms | 8448 KB |
in13.txt | AC | 15 ms | 8832 KB |
in14.txt | AC | 15 ms | 8832 KB |
in15.txt | AC | 15 ms | 8832 KB |
in16.txt | AC | 15 ms | 8832 KB |
in17.txt | AC | 15 ms | 8832 KB |
in18.txt | AC | 15 ms | 8832 KB |
in19.txt | AC | 15 ms | 8832 KB |
in2.txt | AC | 15 ms | 8832 KB |
in20.txt | AC | 15 ms | 8832 KB |
in21.txt | AC | 15 ms | 8832 KB |
in22.txt | AC | 15 ms | 8832 KB |
in23.txt | AC | 15 ms | 8832 KB |
in24.txt | AC | 15 ms | 8832 KB |
in25.txt | AC | 15 ms | 8832 KB |
in26.txt | AC | 15 ms | 8832 KB |
in27.txt | AC | 15 ms | 8832 KB |
in28.txt | AC | 3 ms | 8448 KB |
in29.txt | AC | 15 ms | 8832 KB |
in3.txt | AC | 15 ms | 8832 KB |
in30.txt | AC | 15 ms | 8832 KB |
in31.txt | AC | 15 ms | 8832 KB |
in32.txt | AC | 15 ms | 8832 KB |
in33.txt | AC | 16 ms | 8832 KB |
in4.txt | AC | 16 ms | 8832 KB |
in5.txt | AC | 16 ms | 8832 KB |
in6.txt | AC | 15 ms | 8832 KB |
in7.txt | AC | 15 ms | 8832 KB |
in8.txt | AC | 15 ms | 8832 KB |
in9.txt | AC | 15 ms | 8832 KB |
sample1.txt | AC | 3 ms | 8448 KB |
sample2.txt | AC | 3 ms | 8448 KB |
sample3.txt | AC | 3 ms | 8448 KB |