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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#757932#9573. Social MediaZhangyqWA 29ms3628kbC++171.5kb2024-11-17 14:41:002024-11-17 14:41:02

Judging History

你现在查看的是最新测评结果

  • [2024-11-17 14:41:02]
  • 评测
  • 测评结果:WA
  • 用时:29ms
  • 内存:3628kb
  • [2024-11-17 14:41:00]
  • 提交

answer

#include <bits/stdc++.h>
#define int long long
#define io ios::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#define pb push_back
using namespace std;
const int N=1e6+5,mod1=1e9+7,mod2=998244353,inf=1e18;
typedef pair<int,int> pi;

void solve()
{
    int n,m,k;
    cin>>n>>m>>k;
    vector<int>st(k+5);
    for(int i=1;i<=n;i++)
    {
        int x;
        cin>>x;
        st[x]=1;
    }
    vector<int>g[k+5];
    vector<int>du(k+5);
    vector<pi>q;
    for(int i=1;i<=m;i++)
    {
        int x,y;
        cin>>x>>y;
        q.pb({x,y});
        g[x].pb(y);
        if(x!=y)g[y].pb(x);
        du[x]++;
        if(x!=y)du[y]++;
    }
    set<pi>s;
    set<int>ha;
    for(int i=1;i<=k;i++)
    {
        if(!st[i])
        {
            s.insert({du[i],i});
            ha.insert(i);
        }
    }
    while(k>n+2&&s.size())
    {
        auto t=(s.begin());
        s.erase(t);
        ha.erase((*t).second);
        k--;
        {
            for(auto i:g[(*t).second])
            {
                if(ha.count(i))
                {
                    s.erase({du[i],i});
                    du[i]--;
                    s.insert({du[i],i});
                }
            }
        }
    }
    int ans=0;
    for(auto [x,y]:q)
    {
        if((st[x]||ha.count(x))&&(st[y]||ha.count(y)))ans++;
    }
    cout<<ans<<'\n';
    
}
signed main()
{
    io;
    int t=1;
    cin>>t;
    while(t--)
    {
        solve();
    }
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3580kb

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: 29ms
memory: 3628kb

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

result:

wrong answer 20th numbers differ - expected: '4', found: '3'