Submission #734791

#	Time	Username	Problem	Language	Result	Execution time	Memory
734791		keisuke6	Circle selection (APIO18_circle_selection)	C++14	7 / 100	2975 ms	15272 KiB

circle_selection

#pragma GCC target("avx512f")
#pragma GCC optimize("O2")
#include <bits/stdc++.h>
using namespace std;

int main(){
  int N;
  cin>>N;
  vector<long long> X(N),Y(N),R(N);
  for(int i=0;i<N;i++) cin>>X[i]>>Y[i]>>R[i];
  vector<int> A(N,N+1);
  vector<pair<long long, long long>> S(N);
  for(int i=0;i<N;i++) S[i] = {R[i],N-1-i};
  sort(S.rbegin(),S.rend());
  for(int i=0;i<N;i++){
    int ind = N-1-S[i].second;
    if(A[ind] != N+1) continue;
    for(int j=0;j<N;j++){
      if(A[j] == N+1 && (X[ind]-X[j])*(X[ind]-X[j])+(Y[ind]-Y[j])*(Y[ind]-Y[j]) <= (R[ind]+R[j])*(R[ind]+R[j])){
        A[j] = ind+1;
      }
    }
    if(clock()*1.0/CLOCKS_PER_SEC > 2.95){
      break;
    }
  }
  for(int i=0;i<N;i++) cout<<(A[i] == N+1 ? i+1 : A[i])<<' ';
  cout<<endl;
}

• Subtask 1: 7 / 7
• Subtask 2: 0 / 12
• Subtask 3: 0 / 15
• Subtask 4: 0 / 23
• Subtask 5: 0 / 30
• Subtask 6: 0 / 13