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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#729438#9573. Social Mediaucup-team3282#WA 41ms53920kbC++142.3kb2024-11-09 17:07:262024-11-09 17:07:27

Judging History

你现在查看的是最新测评结果

  • [2024-11-09 17:07:27]
  • 评测
  • 测评结果:WA
  • 用时:41ms
  • 内存:53920kb
  • [2024-11-09 17:07:26]
  • 提交

answer

#include<iostream>
#include<cstring>
#include<algorithm>
#include<cstdio>
#include<vector>
using namespace std;
vector<long long>link[2000050];
long long sum[8000050];bool tb[2000050];
void build(int p,int l,int r){
    sum[p]=0;
    if(l==r){
        return;
    }
    int mid=(l+r)>>1;
    build(p<<1,l,(l+r)>>1);
    build(p<<1|1,mid+1,r);
}
void add(long long p,long long l,long long r,long long np,long long op){
    if(l>np||r<np)return;
    if(l==r){
        sum[p]+=op;
        return;
    }long long mid=(l+r)>>1;
    add(p<<1  ,l    ,mid,np,op);
    add(p<<1|1,mid+1,r  ,np,op);
    sum[p]=max(sum[p<<1],sum[p<<1|1]);
    return;
}

int main(){
    long long t;cin>>t;while(t--){
        long long n,m,k;cin>>n>>m>>k;
        for(long long i=1;i<=k;i++){
            link[i].clear();
            tb[i]=0;
        }
        build(1,1,k);
        for(long long i=1;i<=n;i++){
            long long p;cin>>p;tb[p]=1;
        }
        long long anser=0;
        long long cnt=0;
        for(long long i=1;i<=m;i++){
            long long f,t;cin>>f>>t;
            link[f].push_back(t);
            link[t].push_back(f);
            if(tb[f]==1&&tb[t]==1){
                cnt++;
            }else{
                if(tb[f]==1){
                    add(1,1,k,t,1);
                }
                if(tb[t]==1){
                    add(1,1,k,f,1);
                }
            }
        }
        anser=cnt;
        for(long long i=1;i<=k;i++){
            if(tb[i])continue;
            long long th=0;
            
            add(1,1,k,i,-1919810);
            long long kk=0;
            for(auto x:link[i]){
                if(x==i){
                    kk++;
                }else
                    if(tb[x]){
                    th++;
                }else{
                    add(1,1,k,x,1);
                }
            }
            th+=kk/2;
            if(kk%2==1){
                while(1);
            }
            // cout<<sum[1]<<"!";
            anser=max(anser,cnt+th+sum[1]);
            for(auto x:link[i]){
                if(tb[x]||x==i){
                    th++;
                }else{
                    add(1,1,k,x,-1);
                }
            }
            // add(1,1,k,i,1919810);
        }
        cout<<anser<<endl;
    }

}

詳細信息

Test #1:

score: 100
Accepted
time: 7ms
memory: 51500kb

input:

5
4 12 7
5 7 3 6
3 6
2 2
1 4
2 4
1 3
7 6
4 1
5 4
1 1
1 1
2 1
3 7
2 7 6
2 4
1 2
3 2
2 5
5 4
2 6
4 6
2 6
1 1 2
1
1 2
2 1 2
1 2
1 2
2 1 100
24 11
11 24

output:

9
5
1
1
1

result:

ok 5 number(s): "9 5 1 1 1"

Test #2:

score: -100
Wrong Answer
time: 41ms
memory: 53920kb

input:

10000
19 12 20
8 12 1 5 11 7 17 13 19 6 3 9 10 15 14 20 4 18 16
4 11
7 1
8 4
16 19
1 13
15 2
16 2
8 7
3 15
11 13
5 20
18 14
17 14 20
2 9 1 12 8 11 10 17 18 16 3 15 5 14 20 13 7
15 10
3 2
5 16
7 8
6 1
6 4
18 16
1 8
4 1
20 6
6 9
4 15
7 5
14 9
1 3 18
9
15 18
17 15
11 14
7 19 7
3 1 2 5 6 4 7
5 1
4 5
3 1...

output:

12
14
1
19
6
5
1
11
19
4
3
10
4
1
4
19
15
2
18
4
17
5
1
2
5
17
3
2
6
15
6
2
5
4
4
7
3
7
4
1
15
15
2
3
6
12
12
7
6
8
8
6
8
11
16
1
3
9
8
14
2
6
19
19
16
8
20
14
8
12
7
9
6
8
2
17
9
5
5
3
5
6
20
8
13
11
10
5
3
6
3
1
8
5
8
11
7
14
10
9
8
11
7
9
5
2
7
14
10
5
3
5
4
10
1
6
8
16
5
3
19
1
4
8
7
10
3
2
1
15...

result:

wrong answer 32nd numbers differ - expected: '3', found: '2'