QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#728381 | #9573. Social Media | ucup-team3282# | WA | 46ms | 10212kb | C++14 | 2.0kb | 2024-11-09 15:04:09 | 2024-11-09 15:04:15 |
Judging History
answer
#include<iostream>
#include<cstring>
#include<algorithm>
#include<cstdio>
#include<vector>
using namespace std;
vector<int>link[200050];
int sum[800050];bool tb[200050];
void add(int p,int l,int r,int np,int op){
if(l>np||r<np)return;
if(l==r){
sum[p]+=op;
return;
}int 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(){
int t;cin>>t;while(t--){
int n,m,k;cin>>n>>m>>k;
for(int i=1;i<=k;i++)link[i].clear(),tb[i]=0;
for(int i=1;i<=8*k;i++)sum[i]=0;
// memset(sum,0,sizeof(sum));
for(int i=1;i<=n;i++){
int p;cin>>p;
tb[p]=1;
}
int ans=0;
int ot=0;
for(int i=1;i<=m;i++){
int f,t;cin>>f>>t;
if(f==t){
add(1,1,k,t,1);
link[t].push_back(f);
continue;
}
link[t].push_back(f);
link[f].push_back(t);
if(tb[f]&&tb[t])ans++;
else{
if(tb[f]){
add(1,1,k,t,1);
}
if(tb[t]){
add(1,1,k,f,1);
}
}
}
// cout<<ans<<"?";
for(int i=1;i<=k;i++){
int anser=0;
if(tb[i])continue;
add(1,1,k,i,-114514);
for(auto x:link[i]){
if(x==i||tb[x]){
anser++;
continue;
}
if(!tb[x]){
// anser++;
add(1,1,k,x,1);
}
}
// cout<<sum[1]<<"/";
anser+=sum[1];
ot=max(ot,anser);
for(auto x:link[i]){
if(!tb[x]){
add(1,1,k,x,-1);
}
}
add(1,1,k,i,+114514);
}
cout<<ans+ot<<endl;
}
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 10212kb
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: 46ms
memory: 8980kb
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 8 19 4 3 10 4 1 4 18 15 2 18 4 17 4 1 2 5 14 3 2 6 15 5 3 6 4 3 7 3 7 4 1 15 14 2 3 6 11 11 7 5 8 8 6 7 11 16 1 4 9 8 13 2 4 16 16 15 8 18 14 6 12 6 9 6 7 2 16 8 5 5 3 6 6 20 8 13 10 8 5 2 6 3 1 8 4 8 10 7 13 9 9 8 11 5 9 5 2 8 14 10 5 3 5 5 8 1 6 9 14 5 3 19 1 3 8 7 10 4 2 1 12 1 9...
result:
wrong answer 8th numbers differ - expected: '11', found: '8'