QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#747754 | #9573. Social Media | jiayan | WA | 30ms | 5876kb | C++14 | 955b | 2024-11-14 18:07:44 | 2024-11-14 18:07:45 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
int flag[200010];
int cnt[200010];
struct edge{
int x,y;
}e[200010];
int cnt1[200010];
int main(){
ios::sync_with_stdio(false);
int T;
cin>>T;
while(T--){
map<pair<int,int>,int>mp;
int n,m,k;
cin>>n>>m>>k;
int res=0;
for(int i=1;i<=k;i++){
cnt[i]=0;
flag[i]=0;
}
int x,y;
for(int i=0;i<n;i++){
cin>>x;
flag[x]=1;
}
for(int i=0;i<m;i++){
cin>>x>>y;
if(x>y) swap(x,y);
e[i].x=x;
e[i].y=y;
if(flag[x]==1&&flag[y]==1) res++;
else if(flag[x]==1){
cnt[y]++;
}
else if(flag[y]==1){
cnt[x]++;
}
else if(x==y) cnt[y]++;
else{
mp[make_pair(x,y)]++;
}
}
for(int i=0;i<=k;i++){
cnt1[i]=cnt[i];
}
sort(cnt1,cnt1+k+1);
int ans=cnt1[k]+cnt1[k-1];
for(int i=0;i<m;i++){
ans=max(ans,cnt[e[i].x]+cnt[e[i].y]+mp[make_pair(e[i].x,e[i].y)]);
}
cout<<ans+res<<endl;
}
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 5876kb
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: 30ms
memory: 5804kb
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 7 5 1 11 19 4 3 10 6 2 4 19 15 2 18 4 17 5 1 2 5 17 3 2 6 15 6 3 6 4 4 7 3 7 4 1 19 15 2 4 6 12 12 7 6 8 8 6 8 11 16 1 4 9 8 14 2 6 19 19 16 8 20 14 8 12 7 9 6 8 2 17 9 5 5 3 6 6 20 8 13 11 10 5 3 7 3 1 8 5 8 11 7 14 10 9 9 11 7 9 5 2 8 14 10 5 3 5 5 10 1 6 10 16 5 3 19 1 4 8 8 10 4 2 1 1...
result:
wrong answer 5th numbers differ - expected: '6', found: '7'