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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#328082#1844. Cactus11d10xyWA 280ms68532kbC++141.1kb2024-02-15 16:57:032024-02-15 16:57:04

Judging History

你现在查看的是最新测评结果

  • [2024-02-15 16:57:04]
  • 评测
  • 测评结果:WA
  • 用时:280ms
  • 内存:68532kb
  • [2024-02-15 16:57:03]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
int n,m,tot,st[300010],vis[300010],tp;
set<int>G[300010];
basic_string<int>ans,cir[300010];
void dfs(int u,int fa){
   st[++tp]=u,vis[u]=1;
   for(int v:G[u])if(v!=fa)if(!vis[v]){
      dfs(v,u);
      if(cir[u].empty())continue;
      cir[u].pop_back();
      int s=cir[u].size();
      for(int i=0;i<s;i++)ans+=cir[u][i]+(i&1)*n;
      ans+={cir[u][0]+n,cir[u].back()+int(cir[u].size()&1)*n};
   }else{cir[v]={};for(int i=tp;st[i+1]!=v;cir[v]+=st[i--]);G[v].erase(u);}
   tp--;
}
int main(){
   cin>>n>>m;
   for(int u,v;m--;)scanf("%d%d",&u,&v),G[u].insert(v),G[v].insert(u);
   set<int>s;
   for(int i=1;i<=n;i++)if(G[i].size()&1)s.insert(i);
   for(int u;!s.empty();){
      u=*begin(s),s.erase(u),ans+=u;
      for(int v:G[u]){
         if(G[v].size()&1)s.erase(v);
         else s.insert(v);
         G[v].erase(u);
      }G[u]={};
   }
   ans+=0;
   for(int i=1;i<=n;i++)if(!vis[i])dfs(i,0),ans+=i;
   printf("0 %d\n",(int)ans.size());
   for(int x:ans)if(x)printf("1 %d\n",x);else puts("2");
   return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 3ms
memory: 27804kb

input:

3 3
1 2
1 3
2 3

output:

0 6
2
1 3
1 5
1 6
1 2
1 1

result:

ok You are right!

Test #2:

score: 0
Accepted
time: 0ms
memory: 28960kb

input:

7 7
1 2
1 3
2 3
2 4
2 5
3 6
3 7

output:

0 13
1 4
1 2
1 1
1 6
1 3
2
1 1
1 2
1 3
1 4
1 5
1 6
1 7

result:

ok You are right!

Test #3:

score: -100
Wrong Answer
time: 280ms
memory: 68532kb

input:

300000 368742
1 143504
1 234282
2 91276
2 296320
3 274816
4 212293
4 258214
5 253489
5 295826
6 96521
6 252745
6 267103
6 269879
7 5293
7 295586
8 44304
8 57067
8 233291
9 190526
10 18682
11 7440
12 24695
12 172561
12 243692
12 280316
13 80152
13 268749
14 146394
14 207280
15 151280
15 226848
16 458...

output:

0 527184
1 3
1 8
1 9
1 10
1 11
1 16
1 20
1 21
1 25
1 28
1 29
1 30
1 32
1 33
1 34
1 41
1 42
1 43
1 44
1 47
1 48
1 53
1 54
1 55
1 57
1 59
1 62
1 65
1 73
1 75
1 77
1 80
1 81
1 87
1 88
1 94
1 95
1 101
1 102
1 103
1 106
1 112
1 123
1 128
1 129
1 133
1 136
1 137
1 138
1 140
1 141
1 143
1 145
1 146
1 150
1...

result:

wrong answer The deg of 277052 is not odd.