Submission #3449713
Source Code Expand
#include<algorithm> #include<iostream> #include<cstring> #include<cstdio> #include<cmath> #include<queue> #define inf 2147483647 #define eps 1e-9 using namespace std; typedef long long ll; struct edge{ int v,next; }a[200001]; int n,u,v,tot=0,head[100001]; void add(int u,int v){ a[++tot].v=v; a[tot].next=head[u]; head[u]=tot; } int dfs(int u,int fa){ int ret=0; for(int tmp=head[u];tmp!=-1;tmp=a[tmp].next){ int v=a[tmp].v; if(v!=fa){ ret^=(dfs(v,u)+1); } } return ret; } int main(){ memset(head,-1,sizeof(head)); scanf("%d",&n); for(int i=1;i<n;i++){ scanf("%d%d",&u,&v); add(u,v); add(v,u); } if(dfs(1,-1))puts("Alice"); else puts("Bob"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Game on Tree |
User | DCDCBigBig |
Language | C++14 (GCC 5.4.1) |
Score | 1100 |
Code Size | 723 Byte |
Status | AC |
Exec Time | 26 ms |
Memory | 6912 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:32:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ ./Main.cpp:34:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&u,&v); ^
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 | 640 KB |
a10.txt | AC | 3 ms | 896 KB |
a11.txt | AC | 3 ms | 896 KB |
a12.txt | AC | 3 ms | 896 KB |
a13.txt | AC | 21 ms | 2176 KB |
a14.txt | AC | 21 ms | 2176 KB |
a15.txt | AC | 17 ms | 1920 KB |
a16.txt | AC | 21 ms | 2432 KB |
a17.txt | AC | 21 ms | 2432 KB |
a18.txt | AC | 22 ms | 2432 KB |
a19.txt | AC | 26 ms | 3200 KB |
a2.txt | AC | 2 ms | 640 KB |
a20.txt | AC | 22 ms | 3328 KB |
a21.txt | AC | 18 ms | 2816 KB |
a22.txt | AC | 21 ms | 2176 KB |
a23.txt | AC | 21 ms | 2176 KB |
a24.txt | AC | 17 ms | 1920 KB |
a25.txt | AC | 21 ms | 2432 KB |
a26.txt | AC | 21 ms | 2432 KB |
a27.txt | AC | 21 ms | 2432 KB |
a28.txt | AC | 22 ms | 3200 KB |
a29.txt | AC | 22 ms | 3328 KB |
a3.txt | AC | 2 ms | 768 KB |
a30.txt | AC | 18 ms | 2816 KB |
a4.txt | AC | 3 ms | 768 KB |
a5.txt | AC | 3 ms | 768 KB |
a6.txt | AC | 3 ms | 768 KB |
a7.txt | AC | 3 ms | 768 KB |
a8.txt | AC | 3 ms | 768 KB |
a9.txt | AC | 3 ms | 768 KB |
b1.txt | AC | 25 ms | 6912 KB |
b2.txt | AC | 24 ms | 4480 KB |
b3.txt | AC | 24 ms | 6912 KB |
b4.txt | AC | 24 ms | 4480 KB |
b5.txt | AC | 24 ms | 4480 KB |
sample1.txt | AC | 1 ms | 640 KB |
sample2.txt | AC | 1 ms | 640 KB |
sample3.txt | AC | 1 ms | 640 KB |
sample4.txt | AC | 1 ms | 640 KB |