Submission #1307620

#	Time	Username	Problem	Language	Result	Execution time	Memory
1307620		madamadam3	Seats (IOI18_seats)	C++20	11 / 100	4093 ms	24104 KiB

seats

#include "seats.h"
#include <bits/stdc++.h>

using namespace std;

using vi = vector<int>;

int h, w;
vi r, c;

void give_initial_chart(int H, int W, vi R, vi C) {
  h = H, w = W;
  r = R, c = C;
}

int swap_seats(int a, int b) {
  swap(r[a], r[b]); swap(c[a], c[b]);
  
  int t = 1;
  int r1 = r[0], r2 = r[0], c1 = c[0], c2 = c[0];

  for (int i = 1; i < h*w; i++) {
    r1 = min(r1, r[i]), r2 = max(r2, r[i]), c1 = min(c1, c[i]), c2 = max(c2, c[i]);
    if ((r2-r1 + 1) * (c2-c1 + 1) == (i+1)) {
      t++;
    }
  }

  return t;
}

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