Submission #612329

#	Time	Username	Problem	Language	Result	Execution time	Memory
612329		dnass	Vision Program (IOI19_vision)	C++17	100 / 100	51 ms	4444 KiB

vision

#include "vision.h"
#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second

int h,w,k;
int diag_left[410];
int diag_right[410];
int lk, rk, lbl, rbl;

pair<int,int> ltog(int x){
	return {x/w, x%w};
}

int gtol(int x, int y){
	return x*w+y;
}

bool inside(int x, int y){
	return (x>=0&&x<h&&y>=0&&y<w);
}

void construct_network(int H, int W, int K) {
	h = H; w = W; k = K;
	if(k==h+w-2){
		add_or({add_and({gtol(0,0), gtol(h-1,w-1)}), add_and({gtol(0,w-1),gtol(h-1,0)})});
		return;
	}
	for(int diag=0;diag<h+w-1;diag++){
		vector<int> query;
		if(diag<w){
			for(int i=0,j=diag;inside(i,j);i++,j--){
				query.push_back(gtol(i,j));
			}
		}else{
			for(int i=diag-w+1,j=w-1;inside(i,j);i++,j--){
				query.push_back(gtol(i,j));
			}
		}
		diag_left[diag] = add_or(query);
	}
	for(int diag=0;diag<h+w-1;diag++){
		vector<int> query;
		if(diag<h){
			for(int i=h-1-diag,j=0;inside(i,j);i++,j++){
				query.push_back(gtol(i,j));
			}
		}else{
			for(int i=0,j=diag-h+1;inside(i,j);i++,j++){
				query.push_back(gtol(i,j));
			}
		}
		diag_right[diag] = add_or(query);
	}
	vector<int> leftk, rightk;
	for(int i=0;i+k<h+w-1;i++){
		leftk.push_back(add_and({diag_left[i],diag_left[i+k]}));
		rightk.push_back(add_and({diag_right[i],diag_right[i+k]}));
	}
	lk = add_or(leftk);
	rk = add_or(rightk);
	vector<int> lblock, rblock;
	for(int diag=0;diag+k<h+w-1;diag++){
		vector<int> ql, qr;
		for(int i=0;i<h+w-1;i++){
			if(diag<=i&&i<=diag+k) continue;
			ql.push_back(diag_left[i]);
			qr.push_back(diag_right[i]);
		}
		lblock.push_back(add_not(add_or(ql)));
		rblock.push_back(add_not(add_or(qr)));
	}
	lbl = add_or(lblock);
	rbl = add_or(rblock);
	add_or({add_and({lk, rbl}), add_and({rk, lbl})});
}

• Subtask 1: 10 / 10
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 15 / 15
• Subtask 5: 12 / 12
• Subtask 6: 8 / 8
• Subtask 7: 14 / 14
• Subtask 8: 19 / 19