Submission #1588983
Source Code Expand
#include<bits/stdc++.h> #define MAXN 1000000+10 using namespace std; int n,m,I,P,Q; int tot,head[MAXN],to[MAXN],nxt[MAXN],linker[MAXN]; bool f,vis[MAXN]; void add(int x,int y){ cnt++; to[cnt]=y; nxt[cnt]=head[x]; head[x]=cnt; } void dfs(int x,int fa){ vis[x]=true; linker[x]=linker[fa]^1; for(int i=head[x];i;i=nxt[i]){ int y=to[i]; if(y!=fa){ if(vis[y]) if(linker[x]==linker[y])f=true; else dfs(y,x); } } } int main(){ scanf("%d%d",&n,&m); int x,y; for(int i=0;i<m;i++){ cin>>x>>y; add(x,y); add(y,x); } for(int i=1;i<=n;i++) if(!vis[i]){ if(!head[i]){ I++; vis[i]=true; continue; } f=false; dfs(i,0); if(f)P++; else Q++; } long long ans=2LL*I*n-1LL*I*I+1LL*P*P+2LL*P*Q+2LL*Q*Q; printf("%lld\n",ans); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Squared Graph |
User | vjudge2 |
Language | Bash (GNU bash v4.3.11) |
Score | 0 |
Code Size | 789 Byte |
Status | RE |
Exec Time | 13 ms |
Memory | 924 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 800 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | sample1.txt, sample2.txt |
All | sample1.txt, sample2.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, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | RE | 13 ms | 924 KB |
in10.txt | RE | 4 ms | 556 KB |
in11.txt | RE | 4 ms | 548 KB |
in12.txt | RE | 4 ms | 548 KB |
in13.txt | RE | 4 ms | 548 KB |
in14.txt | RE | 4 ms | 548 KB |
in15.txt | RE | 4 ms | 556 KB |
in16.txt | RE | 4 ms | 544 KB |
in17.txt | RE | 4 ms | 548 KB |
in18.txt | RE | 4 ms | 548 KB |
in19.txt | RE | 4 ms | 548 KB |
in2.txt | RE | 3 ms | 544 KB |
in20.txt | RE | 3 ms | 548 KB |
in21.txt | RE | 3 ms | 556 KB |
in22.txt | RE | 3 ms | 552 KB |
in23.txt | RE | 3 ms | 556 KB |
in24.txt | RE | 3 ms | 556 KB |
in25.txt | RE | 3 ms | 548 KB |
in26.txt | RE | 3 ms | 556 KB |
in27.txt | RE | 3 ms | 544 KB |
in28.txt | RE | 3 ms | 556 KB |
in3.txt | RE | 3 ms | 548 KB |
in4.txt | RE | 3 ms | 544 KB |
in5.txt | RE | 3 ms | 540 KB |
in6.txt | RE | 3 ms | 548 KB |
in7.txt | RE | 3 ms | 544 KB |
in8.txt | RE | 3 ms | 548 KB |
in9.txt | RE | 3 ms | 556 KB |
sample1.txt | RE | 3 ms | 556 KB |
sample2.txt | RE | 3 ms | 548 KB |