Submission #1198109

#	Time	Username	Problem	Language	Result	Execution time	Memory
1198109		mychecksedad	Hamburg Steak (JOI20_hamburg)	C++20	2 / 100	1645 ms	1114112 KiB

hamburg

/* Author : Mychecksdead  */
#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define pb push_back
#define all(x) x.begin(), x.end()
#define en cout << '\n'
#define ff first
#define ss second
#define pii pair<int,int>
#define vi vector<int>
const int N = 1e6+100, M = 1e5+10, K = 52, MX = 30;


int n, k;
array<int, 4> a[N];
void solve(){
  cin >> n >> k;
  vector<array<int, 4>> p;
  for(int i = 1; i <= n; ++i){
    cin >> a[i][0] >> a[i][1] >> a[i][2] >> a[i][3];
    p.pb(a[i]);
  }
  vi XS, YS;
  for(int j = 0; j < k; ++j){
    int X = 1000000001;
    vector<array<int, 4>> np;
        
    for(auto x: p){
      X = min(X, x[2]);
    }

    for(auto x: p){
      if(x[0] <= X && X <= x[2]){
        // nothing to do actually
      }else{
        np.pb(x);
      }
    }

    np.swap(p);

    XS.pb(X);
  }
  assert(p.empty());
  for(int i = 1; i <= n; ++i){
    p.pb(a[i]);
  }
  for(int j = 0; j < k; ++j){
    int Y = 1000000001;
    vector<array<int, 4>> np;
        
    for(auto x: p){
      Y = min(Y, x[3]);
    }

    for(auto x: p){
      if(x[1] <= Y && Y <= x[3]){
        // nothing to do actually
      }else{
        np.pb(x);
      }
    }

    np.swap(p);

    YS.pb(Y);
  }
  assert(p.empty());
  assert(XS.size() * YS.size() <= k*k);
  if(XS.size() * YS.size() <= k){
    for(int x: XS){
      for(int y: YS) {cout << x << ' ' << y << '\n'; k--;}
    }
    for(int i = 0; i < k; ++i) cout << 1 << ' ' << 1 << '\n';
    return;
  }
  vector<array<int, 2>> P;
  for(int x: XS){
    for(int y: YS) P.pb({x, y});
  }
  int m = P.size();
  for(int j = 0; j < (1<<m); ++j){
    if(__builtin_popcount(j) != k) continue;
    bool ok = true;
    vector<array<int, 2>> v;
    for(int jj = 0; jj < m; ++jj){
      if((1<<jj)&j) v.pb(P[jj]);
    }
    for(int i = 1; i <= n; ++i){
      bool f = false;
      for(auto [x,y]: v){
        if(a[i][0] <= x && x <= a[i][2] && a[i][1] <= y && y <= a[i][3]){
          f = true;
        }
      }
      ok = ok & f;
    }
    if(ok){
      for(auto [x, y]: v){
        cout << x << ' ' << y << '\n';
      }
      return;
    }
  }
  vi v;
  for(int i = 0; i < MOD; ++i){
    v.pb(i);
  }
}


int main(){
  cin.tie(0); ios::sync_with_stdio(0);
  int tt = 1, aa;
  // freopen("in.txt", "r", stdin);
  // freopen("out.txt", "w", stdout);
  while(tt--){
    solve();
  }
  cerr<<"time taken : "<<(float)clock()/CLOCKS_PER_SEC<<" seconds\n";
  return 0;
} 

• Subtask 1: 1 / 1
• Subtask 2: 0 / 1
• Subtask 3: 0 / 3
• Subtask 4: 0 / 6
• Subtask 5: 1 / 1
• Subtask 6: 0 / 3
• Subtask 7: 0 / 6
• Subtask 8: 0 / 79