QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#724379 | #9573. Social Media | ucup-team1338# | WA | 23ms | 5804kb | C++17 | 975b | 2024-11-08 12:47:08 | 2024-11-08 12:47:09 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N=1000013;
int f[N];
int v[N];
void solve() {
int n, m, k;
cin >> n >> m >> k;
for (int i = 1, x; i <= n; i++) {
cin >> x;
f[x]=1;
}
map<pair<int,int>,int>v2;
int nw=0;
for(int i=1,x,y;i<=m;i++) {
cin>>x>>y;
if(x==y)v[x]++;
else {
if(x>y)swap(x,y);
if(f[x]+f[y]==2)nw++;
else if(f[x]||f[y]){
if(f[x])v[y]++;
if(f[y])v[x]++;
}else {
v2[{x,y}]++;
}
}
}
int ans=0;
for(auto[p,c]:v2) {
ans=max(ans,c+nw+v[p.first]+v[p.second]);
}
sort(v+1,v+k+1,greater<>());
ans=max(ans,v[1]+v[2]+nw);
cout<<ans<<'\n';
for(int i=1;i<=k;i++)f[i]=v[i]=0;
}
signed main(){ios::sync_with_stdio(false);
int T=1;
cin>>T;
while(T--)solve();
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 5604kb
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: 23ms
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 6 5 1 11 19 4 3 10 4 1 4 18 15 2 18 4 17 4 1 2 5 16 3 2 6 15 6 3 6 4 3 7 3 7 4 1 15 15 2 3 6 11 11 7 5 8 8 6 8 11 16 1 4 9 8 14 2 6 19 16 16 8 20 14 6 12 6 9 6 8 2 16 9 5 5 3 6 6 20 8 13 11 8 5 2 6 3 1 8 4 8 11 7 13 9 9 8 11 7 9 5 2 8 14 10 5 3 5 5 8 1 6 9 16 5 3 19 1 3 8 7 10 4 2 1 12 1 ...
result:
wrong answer 16th numbers differ - expected: '19', found: '18'