Submission #768791

#	Time	Username	Problem	Language	Result	Execution time	Memory
768791		Baytoro	Seats (IOI18_seats)	C++17	11 / 100	4101 ms	26524 KiB

seats

#include "seats.h"
//#include "grader.cpp"
#include <bits/stdc++.h>
#define fr first
#define sc second
using namespace std;
const int N=1e6+5;
pair<int,int> A[N];
int h,w;
void give_initial_chart(int H, int W, vector<int> R, vector<int> C) {
	h=H,w=W;
	for(int i=0;i<H*W;i++)
		A[i]={R[i],C[i]};
}

int swap_seats(int a, int b) {
	swap(A[a],A[b]);
	int ans=1;
	int l=A[0].fr,r=A[0].fr;
	int u=A[0].sc,d=A[0].sc;
	for(int i=1;i<h*w;i++){
		l=min(l,A[i].fr);
		r=max(r,A[i].fr);
		d=min(d,A[i].sc);
		u=max(u,A[i].sc);
		if(i+1==(r-l+1)*(u-d+1)) ans++;
	}
	return ans;
}

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