Submission #417171

#	Time	Username	Problem	Language	Result	Execution time	Memory
417171		AmineTrabelsi	Seats (IOI18_seats)	C++14	0 / 100	414 ms	23728 KiB

seats

#include "seats.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> r,c;
int h,w,n;
int get(){
  int a = r[0],b=c[0],x= r[0],y=c[0];
  int ans = 1;
  for(int i=1;i<n;i++){
    int le = r[i], ri = c[i];
    if(le < a)a = le;
    else if(le > x)x = le;
    if(ri < b)b = ri;
    else if(ri > y)y = ri;
    ans += (x-a+1) * (y-b+1) == i+1;
    i = max(i,(x-a+1) * (y-b+1)-3);
  }
  return ans;
}
void give_initial_chart(int H, int W, vector<int> R, vector<int> C) {
  h = H,w= W,n = H*W;
  r = R;
  c = C;
}

int swap_seats(int a, int b) {
  swap(r[a],r[b]);
  swap(c[a],c[b]);
  return get();
}

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