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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#564516 | #4243. Good Coloring | rotcar07 | WA | 52ms | 5740kb | C++20 | 975b | 2024-09-15 08:35:58 | 2024-09-15 08:35:59 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
constexpr int N=3e5+5;
int n,m,k,c[N];
vector<int> e[N];
vector<int> w[N];
int dp[N];
inline void solve(){
cin>>n>>m>>k;
for(int i=1;i<=k;i++) w[i].clear();
for(int i=1;i<=n;i++) cin>>c[i],w[c[i]].push_back(i),e[i].clear(),dp[i]=0;
for(int i=1,u,v;i<=m;i++){
cin>>u>>v;
if(c[u]>c[v]) swap(u,v);
e[v].push_back(u);
}
int mx=0;
for(int i=1;i<=k;i++){
for(auto x:e[i]) dp[i]=max(dp[i],dp[x]);
dp[i]++;mx=max(mx,dp[i]);
}
cout<<mx<<' ';for(int i=1;i<=n;i++) cout<<dp[i]<<' ';cout<<'\n';
vector<int> sb;
int w=0;for(int i=1;i<=n;i++) if(dp[i]==mx){w=i;break;}
cout<<w<<' ';
for(int i=mx-1;i>=1;i--){
for(auto x:e[w]) if(dp[x]==i){w=x;break;}
cout<<w<<" ";
}
cout<<'\n';
}
int main(){
std::ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
int t;cin>>t;
while(t--) solve();
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3680kb
input:
2 3 3 3 1 2 3 1 2 2 3 3 1 3 1 3 1 2 3 1 2
output:
3 1 2 3 3 2 1 2 1 2 1 2 1
result:
ok good job (2 test cases)
Test #2:
score: -100
Wrong Answer
time: 52ms
memory: 5740kb
input:
50000 5 7 5 5 2 3 1 5 4 3 3 1 5 2 5 4 5 3 2 4 4 1 6 5 5 1 1 4 5 5 2 2 3 3 5 6 1 2 4 1 5 7 5 6 4 6 3 5 6 5 3 5 4 5 6 7 2 1 2 3 6 7 7 4 3 4 2 1 3 4 1 6 7 3 4 3 6 3 5 6 1 2 3 2 4 5 6 5 3 3 4 4 1 4 5 2 3 5 2 3 1 4 2 5 1 6 6 3 2 3 2 2 1 1 2 6 3 5 2 5 6 3 4 5 4 6 7 5 2 1 2 1 1 2 2 1 5 4 5 3 7 5 1 2 3 2 7 ...
output:
2 1 1 1 1 2 5 2 3 1 1 2 2 3 0 5 3 2 2 1 2 1 1 2 2 0 2 1 1 1 1 1 1 0 0 0 1 2 1 1 2 2 1 3 2 1 1 1 1 0 0 0 1 2 1 2 0 0 0 0 0 2 1 2 1 1 1 1 1 2 1 6 4 3 1 2 1 1 3 5 2 1 2 1 1 1 2 2 1 4 1 2 1 1 1 1 1 2 6 2 2 1 1 1 1 2 0 0 5 2 3 1 1 1 2 2 3 0 6 4 2 3 1 1 1 2 3 0 0 5 4 3 1 1 1 1 ...
result:
wrong answer invalid coloring: the colors of vertex 1 and 3 are the same (test case 1)