Submission #1317304

#	Time	Username	Problem	Language	Result	Execution time	Memory
1317304		Johan	Table Tennis (info1cup20_tabletennis)	C++20	35 / 100	3130 ms	689348 KiB

tabletennis

#include "bits/stdc++.h"
using namespace std;
#define int long long 
const int B = 1e3 + 5;
signed main(){
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int n, k;
  cin >> n >> k;
  int m = n + k;
  vector < int > a(m + 1);
  for(int i = 1; i <= m; i++)
    cin >> a[i];
  set < int > st;
  map < int, vector < pair < int , int > > > mp;
  for(int i = 1; i <= min(m, B); i++){
    for(int j = i + 1; j <= min(m, B * 10); j++){
      st.insert(a[i] + a[j]);
      mp[a[i] + a[j]].push_back({i, j});
    }
  }
  vector < int > rs, id;
  for(auto x : st){
    if(mp[x].size() < n / 2)continue;
    for(int i = 0; i < n / 2; i++){
      rs.push_back(a[mp[x][i].first]);
      rs.push_back(a[mp[x][i].second]);
    }
    break;
  }
  sort(rs.begin(), rs.end());
  for(auto i : rs)
    cout << i << ' ';
  cout << endl;
}

• Subtask 1: 11 / 11
• Subtask 2: 0 / 9
• Subtask 3: 0 / 14
• Subtask 4: 15 / 15
• Subtask 5: 9 / 9
• Subtask 6: 0 / 14
• Subtask 7: 0 / 15
• Subtask 8: 0 / 13