Submission #125089

#	Time	Username	Problem	Language	Result	Execution time	Memory
125089		arthurconmy	Seats (IOI18_seats)	C++14	11 / 100	4075 ms	40216 KiB

seats

#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include <cmath>
#include <algorithm>
#include <map>
#include <queue>
#include <bitset>
#include <random>
#include <stack>
#include <deque>
#include <chrono>

#include "seats.h"

using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;
typedef vector<bool> vb;
typedef pair<int,int> pii;
#define REP(i, a, b) for (int i = int(a); i <= int(b); i++)
#define REPb(j, d, c) for (int j = int(d); j >= int(c); j--)
#define ff first
#define ss second
#define pb push_back
#define len(x) int((x).size())

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)
{
	// R[i], C[i] are the coordinates of the ith person

  int oldra=R[a];
  int oldca=C[a];
  R[a]=R[b];
  C[a]=C[b];
  R[b]=oldra;
  C[b]=oldca;

  //cout<<"outchea"<<endl;

  int minr=R[0];
  int maxr=R[0];
  int minc=C[0];
  int maxc=C[0];

  int beauty=1;

  //cout << C[0] << " " << C[1] << " " << C[2] << endl;

  REP(i,1,h*w-1)
  {
    minr=min(minr,R[i]);
    maxr=max(maxr,R[i]);
    minc=min(minc,C[i]);
    maxc=max(maxc,C[i]);

    //cout << i << " " << maxr << " " << minr << " " << maxc << " " << minc << endl;

    if((maxr-minr+1)*(maxc-minc+1) == i+1) beauty++;
  }

  return beauty;
}

/*int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);

	ifstream cin("input.txt");
	//ifstream cin("test.in");
	//ofstream cout("test.out");

}*/

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