QOJ.ac
QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#757932 | #9573. Social Media | Zhangyq | WA | 29ms | 3628kb | C++17 | 1.5kb | 2024-11-17 14:41:00 | 2024-11-17 14:41:02 |
Judging History
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;
}
詳細信息
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'