Submission #1318276

#TimeUsernameProblemLanguageResultExecution timeMemory
1318276husu1331Table Tennis (info1cup20_tabletennis)C++20
20 / 100
119 ms22648 KiB
#include <bits/stdc++.h>
using namespace std;
///////////////////////////////////////////////
#define int long long
#define endl "\n"
#define IO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define INF 0x3F3F3F3F3F3F3F3F
#define ss second
#define ff first
#define pb push_back
#define ins insert
#define fori for(int i = 0 ; i < n ; i ++)
///////////////////////////////////////////////
const int sz = 2e3 + 5 ;
const int LG = 20 ;
const int N = 1e3 ;
const int mod = 1e9 + 7 ;
const int MAXM = 1e5 ;
///////////////////////////////////////////////
///////////////////////////////////////////////
void solve() {
  int n ;
  cin >> n ;
  int k ;
  cin >> k ;
  n += k ;
  vector<int>a(n) ;
  map<int , int>mp ;
  map<int , int>pos ;
  for(int i = 0 ; i < n ; i ++) {
    cin >> a[i] ;
    mp[a[i]] ++ ;
  }
  if(n == 3) {
    cout << a[0] << ' ' << a[1] ;
    return ;
  }
  sort(a.begin() , a.end()) ;
  for(int i = 0 ; i < n ; i ++) {
    pos[a[i]] = i ;
  }
  int nn = a.size() ;
  vector<bool>check(nn , 0) ;
  int l = 1 ;
  int r = nn - 1;
  map<int , int>rep ;
  while(l < r) {
    int sum = a[l] + a[r] ;
    l ++ ;
    r -- ;
    rep[sum] ++ ;
  }
  l = 0 ;
  r = nn - 2 ;
  while(l < r) {
    int sum = a[l] + a[r] ;
    l ++ ;
    r -- ;
    rep[sum] ++ ;
  }
  l = 0 ; 
  r = nn - 1 ;
  while(l < r) {
    int sum = a[l] + a[r] ;
    l ++ ; 
    r -- ;
    rep[sum] ++ ;
  }
  int sum = 0 ;
  int maks = -1 ;
  for(auto i : rep) {
    if(maks < i.ss) {
      maks = i.ss ;
      sum = i.ff ;
    }
  }
  //cout << sum << endl ;
  int ind = -1 ;
  for(int i = 0 ; i < n ; i ++) {
    if(check[i] == 0) {
      check[i] = 1 ;
      int dif = sum - a[i] ;
      //cout << dif << ' ' ;
      if(mp[dif] == 0) {
        ind = i ;
        break ;
      }
      if(mp[dif] == 1 and dif == a[i]) {
        ind = i ;
        break ;
      }
      check[pos[dif]] = 1 ;
    }
  }
  //cout << endl ;
  for(int i = 0 ; i < n ; i ++) {
    if(i != ind) {
      cout << a[i] << ' ' ;
    }
  }
}
///////////////////////////////////////////////
///////////////////////////////////////////////
signed main() {
  IO ;
  int t = 1 ; // cin >> t ;
  while(t --) {
    solve() ;
    cout << endl ;
  }
}
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