#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int N=3e3;
int t[N+10][N+10];
int c[N+10];
vector<pair<int,int>> ans;
vector<int> e[N+10];
bool vis[N+10];
bool vistmp[N+10];
int k=0;
int dfs2(int x,int lst,int y)
{
vistmp[x]=true;
if(t[x][y]==lst)
return c[x];
for(auto v:e[x])
{
if(!vistmp[v])
{
auto tmp=dfs2(v,lst+1,y);
if(tmp!=0)
return tmp;
}
}
return 0;
}
void dfs(int x,int n)
{
vis[x]=true;
for(int i=1;i<=n;i++)
vistmp[i]=!vis[i];
c[x]=dfs2(x,0,x);
if(c[x]==0)
c[x]=++k;
for(int i=1;i<=n;i++)
{
if(vis[i])
continue;
else if(t[x][i]==1)
{
vis[i]=true;
ans.emplace_back(i,x);
c[i]=c[x];
}
else if(t[x][i]==2)
{
ans.emplace_back(i,x);
e[x].push_back(i);
e[i].push_back(x);
dfs(i,n);
}
}
return;
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
int n;
cin>>n>>n;
for(int i=1;i<=n;i++)
{
for(int j=1;j<=n;j++)
cin>>t[i][j];
}
dfs(1,n);
for(int i=1;i<=n;i++)
cout<<c[i]<<" ";
cout<<"\n";
for(auto [a,b]:ans)
cout<<a<<" "<<b<<"\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
443 ms |
53712 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |