Submission #1163320

#	Time	Username	Problem	Language	Result	Execution time	Memory
1163320		PagodePaiva	Seats (IOI18_seats)	C++20	11 / 100	916 ms	16704 KiB

seats

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

using namespace std;

const int N = 10010;
pair <int, int> vals[N];
int h, w;

void give_initial_chart(int H, int W, std::vector<int> r, std::vector<int> c) {
  h = H;
  w = W;
  for(int i = 0;i < h*w;i++){
    vals[i] = {r[i], c[i]};
  }
}

int swap_seats(int a, int b) {
  swap(vals[a], vals[b]);
  int res = 0;
  int mxr = -1, mnr = h+1, mxc = -1, mnc = w+1;
  for(int i = 0;i < h*w;i++){
    mxr = max(mxr, vals[i].first);
    mnr = min(mnr, vals[i].first);
    mxc = max(mxc, vals[i].second);
    mnc = min(mnc, vals[i].second);
    int calc = (mxr-mnr+1)*(mxc-mnc+1);
    if(calc ==i+1) res++;
  }
  return res;
}

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