Submission #111346

#	Time	Username	Problem	Language	Result	Execution time	Memory
111346		aleksami	Pictionary (COCI18_pictionary)	C++14	56 / 140	1569 ms	66560 KiB

pictionary

    #include <bits/stdc++.h>
     
    using namespace std;
    #define MAXN 100005
    typedef pair<int,int> pii;
    int n,m,q;
    vector <int> comps[MAXN];
    int par[MAXN];
    vector <pii> events[MAXN];
     
    void init()
    {
      for(int i = 1; i <= n; i++)comps[i].push_back(i),par[i]=i,events[i].push_back({0,i});
    }
     
    int main()
    {
      ios_base::sync_with_stdio(false);
      cin >> n >> m >> q;
      init();
      for(int i = m; i >= 1; i--)
      {
        int mx = par[i];
        for(int j = i; j <= n; j+=i)
        {
          if(comps[mx].size()>comps[par[j]].size())mx=par[j];
        }
        for(int j = i; j <= n; j+=i)
        {
          if(par[j]==mx)continue;
          int compid = par[j];
          for(auto x:comps[compid])
          {
            comps[mx].push_back(x);
            par[x]=mx;
            events[x].push_back({m-i+1,mx});
          }
          //comps[compid].clear();
        }
      }
      while(q--)
      {
        int a,b;
        cin >> a >> b;
        int ans = m;
        for(auto x:events[a])
        {
          for(auto y:events[b])
          {
            if(x.second==y.second)ans=min(ans,max(x.first,y.first));
          }
        }
        cout << ans << " ";
      }
      return 0;
    }

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 14 / 14
• Subtask 4: 14 / 14
• Subtask 5: 0 / 14
• Subtask 6: 0 / 14
• Subtask 7: 0 / 14
• Subtask 8: 0 / 14
• Subtask 9: 0 / 14
• Subtask 10: 0 / 14