Submission #600798

#	Time	Username	Problem	Language	Result	Execution time	Memory
600798		jack715	Seats (IOI18_seats)	C++14	11 / 100	4086 ms	40760 KiB

seats

#include "seats.h"
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define pp pop_back
#define mp make_pair
#define bb back
#define ff first
#define ss second

using namespace std;

vector<int> row, col;
int h, w;

void give_initial_chart(int H, int W, vector<int> R, vector<int> C) {
  row = R;
  col = C; 
  h = H;
  w = W; 
}

int swap_seats(int A, int B) {
  swap(row[A], row[B]);
  swap(col[A], col[B]);
  // cout << "=== " << A << ' ' << B << '\n';
  // cout << row[A] << ' '<< col[A] << ' ' << row[B] << ' ' << col[B] << '\n';
  int ans = 0, l = w-1, r = 0, t = h-1, b = 0;
  for (int i = 0; i < h*w; i++) {
    // cout << col[i] << ' ' << row[i] << '\n';
    l = min(l, col[i]);
    t = min(t, row[i]);
    r = max(r, col[i]);
    b = max(b, row[i]);
    // cout << l << ' ' << r << '\n';
    // cout << t << ' ' << b << '\n';
    if (i+1 == (r-l+1)*(b-t+1)) {
      // cout << i << ' ';
      ans++;
    }
  }
  // cout << "===\n";
  // cout << '\n';
  return ans;
}


/*
2 3 2
0 0
1 0
1 1 
0 1
0 2
1 2
0 5
0 5
*/

• Subtask 1: 5 / 5
• Subtask 2: 6 / 6
• Subtask 3: 0 / 20
• Subtask 4: 0 / 6
• Subtask 5: 0 / 33
• Subtask 6: 0 / 30