Submission #1750845
Source Code Expand
#include<bits/stdc++.h> #define N 200005 using namespace std; int head[N],ver[N],nxt[N],tot; void add(int a,int b) { tot++;nxt[tot]=head[a];head[a]=tot;ver[tot]=b;return ; } int g[N]; bool flag,n; void dfs(int x,int f) { g[x]=0; for(int i=head[x];i;i=nxt[i]) { if(ver[i]==f)continue; dfs(ver[i],x); if(!g[ver[i]]) { if(!g[x])g[x]=1; else flag=1; } } } int main() { scanf("%d",&n); tot=0; int t1,t2;flag=0; for(int i=1;i<n;i++) { scanf("%d%d",&t1,&t2); add(t1,t2);add(t2,t1); } dfs(1,-1); for(int i=1;i<=n;i++)head[i]=0; if(flag||g[1])puts("First"); else puts("Second"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Black and White Tree |
User | SD_le |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 675 Byte |
Status | WA |
Exec Time | 1 ms |
Memory | 256 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:27:15: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘bool*’ [-Wformat=] scanf("%d",&n); ^ ./Main.cpp:27:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ ./Main.cpp:33:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&t1,&t2); ^
Judge Result
Set Name | Sample | All | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 900 | ||||||||
Status |
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Set Name | Test Cases |
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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 | WA | 1 ms | 256 KB |
in10.txt | WA | 1 ms | 256 KB |
in11.txt | AC | 1 ms | 256 KB |
in12.txt | AC | 1 ms | 256 KB |
in13.txt | AC | 1 ms | 256 KB |
in14.txt | AC | 1 ms | 256 KB |
in15.txt | AC | 1 ms | 256 KB |
in16.txt | AC | 1 ms | 256 KB |
in17.txt | AC | 1 ms | 256 KB |
in18.txt | AC | 1 ms | 256 KB |
in19.txt | AC | 1 ms | 256 KB |
in2.txt | WA | 1 ms | 256 KB |
in20.txt | AC | 1 ms | 256 KB |
in21.txt | WA | 1 ms | 256 KB |
in22.txt | WA | 1 ms | 256 KB |
in23.txt | WA | 1 ms | 256 KB |
in24.txt | WA | 1 ms | 256 KB |
in25.txt | WA | 1 ms | 256 KB |
in26.txt | WA | 1 ms | 256 KB |
in27.txt | WA | 1 ms | 256 KB |
in28.txt | AC | 1 ms | 256 KB |
in29.txt | WA | 1 ms | 256 KB |
in3.txt | WA | 1 ms | 256 KB |
in30.txt | WA | 1 ms | 256 KB |
in31.txt | WA | 1 ms | 256 KB |
in32.txt | WA | 1 ms | 256 KB |
in33.txt | WA | 1 ms | 256 KB |
in4.txt | WA | 1 ms | 256 KB |
in5.txt | WA | 1 ms | 256 KB |
in6.txt | WA | 1 ms | 256 KB |
in7.txt | WA | 1 ms | 256 KB |
in8.txt | WA | 1 ms | 256 KB |
in9.txt | WA | 1 ms | 256 KB |
sample1.txt | WA | 1 ms | 256 KB |
sample2.txt | WA | 1 ms | 256 KB |
sample3.txt | AC | 1 ms | 256 KB |