Submission #168489

#	Time	Username	Problem	Language	Result	Execution time	Memory
168489		theStaticMind	Sirni (COCI17_sirni)	C++14	0 / 140	2148 ms	105804 KiB

sirni

#include<bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define ii pair<int,int>
#define all(x) (x).begin(),(x).end()
#define INF 100000000000000000
#define modulo 1000000007
#define mod 998244353
#define int long long int
using namespace std;
priority_queue<pair<int,ii>,vector<pair<int,ii>>,greater<pair<int,ii>>>edge;
vector<int>no(1000005);
int F(int x){
      if(no[x]==x)return x;
      return no[x]=F(no[x]);
}
bool merge(int x,int y){
      x=F(x);
      y=F(y);
      if(x==y)return false;
      no[x]=y;
      return true;
}
int32_t main(){
      ios_base::sync_with_stdio(false);
      cin.tie(NULL);
   //   freopen("q.gir","r",stdin);
   //   freopen("q.cik","w",stdout);
      int n,ans=0;
      cin>>n;
      for(int i=0;i<=n;i++)no[i]=i;
      vector<int>A(n);
      for(int i=0;i<n;i++)cin>>A[i];
      sort(all(A));
      vector<int>arr;
      arr.pb(A[0]);
      for(int i=1;i<n;i++){
            if(A[i]!=A[i-1])arr.pb(A[i]);
      }
      map<int,vector<int>> data;
      for(int i=0;i*arr[0]<=1e6;i++){
            data[arr[0]*i].pb(0);
      }
      for(int i=1;i<arr.size();i++){
            map<int,vector<int>>::iterator itr;
            vector<int>& Q=(itr=--data.upper_bound(arr[i]))->second;
            for(int j=0;j<Q.size();j++){
                  edge.push({arr[i]-itr->first,{i,Q[j]}});
            }
            for(int j=1;j*arr[i]<=1e6;j++){
                  data[arr[i]*j].pb(i);
            }
      }
      while(!edge.empty()){
            int x=edge.top().second.first;
            int y=edge.top().second.second;
            int w=edge.top().first;
            edge.pop();
            if(merge(x,y)){
                  ans+=w;
            }
      }
      cout<<ans;
}

Compilation message (stderr)

sirni.cpp: In function 'int32_t main()':
sirni.cpp:44:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for(int i=1;i<arr.size();i++){
                   ~^~~~~~~~~~~
sirni.cpp:47:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(int j=0;j<Q.size();j++){
                         ~^~~~~~~~~

• Subtask 1: 0 / 14
• Subtask 2: 0 / 14
• Subtask 3: 0 / 14
• Subtask 4: 0 / 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