Submission #121001

#	Time	Username	Problem	Language	Result	Execution time	Memory
121001		ioilolcom	Seats (IOI18_seats)	C++14	5 / 100	4046 ms	28272 KiB

seats

#include "seats.h"
#include <bits/stdc++.h>
using namespace std;
std::vector<int> r;
std::vector<int> c;
int mr=1e9;
int mc=1e9;
int mmc,mmr;
bitset<10005> st[10005];
bool check(int l){
	for(int i=mr; i<=mmr; i++) {
		for(int j=mc; j<=mmc; j++) {
			if(!st[i][j]) {
				return false;
			}
		}
	}
	return true;
}
int h,w;
void give_initial_chart(int H, int W, std::vector<int> R, std::vector<int> C) {
	r=R;
	c=C;
	h=H;
	w=W;
}

int swap_seats(int a, int b) {
	mr=1e9; mc=1e9;
	mmc=0; mmr=0;
	memset(st,0,sizeof st);
	swap(r[a],r[b]);
	swap(c[a],c[b] );
	int cnt=0;
	for(int i=0; i<=h*w-1; i++) {
		mr=min(mr,r[i]);
		mmr=max(mmr,r[i]);
		mc=min(mc,c[i]);
		mmc=max(mmc,c[i]);
		st[r[i]][c[i]]=1;
		if(check(i)) {
			cnt++;
		}
	}
	return cnt;
}

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