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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. bool odw[500002];
  4. vector<bool> wyn;
  5. int main()
  6. {
  7.     ios_base::sync_with_stdio(0);
  8.     cin.tie(0);
  9.     int n,m;
  10.     cin>>n>>m;
  11.     vector<vector<int>> vec;
  12.     for(int i=0;i<n;i++)
  13.     {
  14.         vector<int> a;
  15.         vec.push_back(a);
  16.     }
  17.     wyn.resize(n+1);
  18.     for(int i=0;i<m;i++)
  19.     {
  20.         int a,b;cin>>a>>b;
  21.         vec[a].push_back(b);
  22.         vec[b].push_back(a);
  23.     }
  24.     queue<pair<int,int>> que;
  25.     for(int i=1;i<=n;i++)
  26.     {
  27.         if(odw[i]==1)
  28.             continue;
  29.         que.push({i,1});
  30.         //cout<<i<<' '<<vec[i].size()<<endl;
  31.         if(vec[i].size()==0)
  32.         {
  33.             cout<<"NIE";
  34.             return 0;
  35.         }
  36.         while(!que.empty())
  37.         {                
  38.         pair<int,bool> a=que.front();
  39.         que.pop();
  40.         odw[a.first]=1;
  41.         wyn[a.first]=a.second;
  42.         for(auto x:vec[a.first])
  43.         {
  44.             if(odw[x]==0)
  45.                 {
  46.                     pair<int,bool> par={x,(a.second-1)*(-1)};
  47.                     que.push(par);
  48.                 }
  49.             }
  50.  
  51.         }
  52.     }
  53.     cout<<"TAK";
  54.     for(int i=1;i<=n;i++)
  55.     {
  56.         if(wyn[i])
  57.         {
  58.             cout<<endl<<'K';
  59.         }
  60.         else
  61.             cout<<endl<<'S';
  62.     }
  63. }
  64.  
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
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3 3
2 1
2 3
1 3
stdout
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TAK
K
S
K
https://ideone.com/ZK0k0p
language:
C++ (gcc 8.3)
created:
4 hours ago
visibility:
public

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