Submission #3449746
Source Code Expand
#include<bits/stdc++.h> #define maxn 100005 using namespace std; typedef long long LL; int read() { char c=getchar();int f=1,sum=0; while(c<'0' || c>'9'){if(c=='-')f=-1;c=getchar();} while(c>='0' && c<='9'){sum=sum*10+c-'0';c=getchar();} return sum*f; } int n; int head[maxn],to[maxn<<1],nex[maxn<<1],cnt; void add(int u,int v){to[++cnt]=v;nex[cnt]=head[u];head[u]=cnt;} int dfs(int x,int fa) { int sg=0; for(int i=head[x];i;i=nex[i]) if(to[i]!=fa) sg^=(dfs(to[i],x)+1); return sg; } int main() { n=read(); for(int i=1;i<n;i++) { int u=read(),v=read(); add(u,v);add(v,u); } if(dfs(1,0)) puts("Alice"); else puts("Bob"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Game on Tree |
User | lijiamu |
Language | C++14 (GCC 5.4.1) |
Score | 1100 |
Code Size | 696 Byte |
Status | AC |
Exec Time | 18 ms |
Memory | 6912 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1100 / 1100 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | sample1.txt, sample2.txt, sample3.txt, sample4.txt |
All | sample1.txt, sample2.txt, sample3.txt, sample4.txt, a1.txt, a10.txt, a11.txt, a12.txt, a13.txt, a14.txt, a15.txt, a16.txt, a17.txt, a18.txt, a19.txt, a2.txt, a20.txt, a21.txt, a22.txt, a23.txt, a24.txt, a25.txt, a26.txt, a27.txt, a28.txt, a29.txt, a3.txt, a30.txt, a4.txt, a5.txt, a6.txt, a7.txt, a8.txt, a9.txt, b1.txt, b2.txt, b3.txt, b4.txt, b5.txt, sample1.txt, sample2.txt, sample3.txt, sample4.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
a1.txt | AC | 1 ms | 256 KB |
a10.txt | AC | 2 ms | 512 KB |
a11.txt | AC | 2 ms | 512 KB |
a12.txt | AC | 2 ms | 512 KB |
a13.txt | AC | 14 ms | 2176 KB |
a14.txt | AC | 14 ms | 2176 KB |
a15.txt | AC | 12 ms | 1792 KB |
a16.txt | AC | 14 ms | 2432 KB |
a17.txt | AC | 15 ms | 2432 KB |
a18.txt | AC | 15 ms | 2432 KB |
a19.txt | AC | 15 ms | 3200 KB |
a2.txt | AC | 1 ms | 256 KB |
a20.txt | AC | 16 ms | 3328 KB |
a21.txt | AC | 13 ms | 2816 KB |
a22.txt | AC | 14 ms | 2176 KB |
a23.txt | AC | 14 ms | 2176 KB |
a24.txt | AC | 11 ms | 1792 KB |
a25.txt | AC | 14 ms | 2432 KB |
a26.txt | AC | 14 ms | 2432 KB |
a27.txt | AC | 14 ms | 2432 KB |
a28.txt | AC | 15 ms | 3200 KB |
a29.txt | AC | 16 ms | 3328 KB |
a3.txt | AC | 2 ms | 384 KB |
a30.txt | AC | 13 ms | 2816 KB |
a4.txt | AC | 2 ms | 384 KB |
a5.txt | AC | 2 ms | 512 KB |
a6.txt | AC | 2 ms | 512 KB |
a7.txt | AC | 2 ms | 512 KB |
a8.txt | AC | 2 ms | 512 KB |
a9.txt | AC | 2 ms | 512 KB |
b1.txt | AC | 18 ms | 6912 KB |
b2.txt | AC | 17 ms | 4480 KB |
b3.txt | AC | 18 ms | 6912 KB |
b4.txt | AC | 17 ms | 4480 KB |
b5.txt | AC | 17 ms | 4480 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |
sample3.txt | AC | 1 ms | 256 KB |
sample4.txt | AC | 1 ms | 256 KB |