Submission #430934

#	Time	Username	Problem	Language	Result	Execution time	Memory
430934		_fractal	Vision Program (IOI19_vision)	C++14	47 / 100	10 ms	1104 KiB

vision

#include "vision.h"
#include <iostream>
using namespace std;

const int dx[] = {+1, +1};
const int dy[] = {+1, -1};


void construct_network(int H, int W, int K) {
	int sz = H * W, cur = H * W - 1;
	vector<int> ask, ksa;
	if (K == 1 && H > 1 && W > 1) {
		for (int i = 0; i < H; ++i) {
			ask.clear();
			for (int j = 0; j < W; ++j)
				ask.push_back(i * W + j);
			add_or(ask);
		}
		for (int j = 0; j < W; ++j) {
			ask.clear();
			for (int i = 0; i < H; ++i)
				ask.push_back(i * W + j);
			add_or(ask);
		}
		for (int i = 0; i < H - 1; ++i) {
			add_and({sz + i, sz + i + 1});
		}
		sz += H;
		for (int i = 0; i < W - 1; ++i) {
			add_and({sz + i, sz + i + 1});
		}
		ask.clear();
		for (int i = 0; i < H; ++i)
			ask.push_back(H * W + i);
		for (int i = 0; i < W; ++i)
			ask.push_back(H * W + H + i);
		add_xor(ask); //H * W + H + W + H - 1 + W - 1
		ask.clear();
		for (int i = 0; i < H - 1; ++i)
			ask.push_back(H * W + H + W + i);
		add_or(ask); //H * W + H + W + H - 1 + W;
		ask.clear();
		for (int i = 0; i < W - 1; ++i)
			ask.push_back(H * W + H + W + H - 1 + i);
		add_or(ask); //H * W + H + W + H + W;
		add_xor({H * W + H + W + H + W, H * W + H + W + H + W - 1});
		add_and({H * W + H + W + H + 1 + W, H * W + H + W + H + W - 1 - 1});
		return;
	}
	for (int i = 0; i < H; ++i) {
		for (int j = 0; j < W; ++j) {
			for (int k = 0; k <= K; ++k) {
				for (int x = 0; x < 2; ++x) {
					if (i + dx[x] * k >= H || i + dx[x] * k < 0 ||
						j + dy[x] * (K - k) >= W || j + dy[x] * (K - k) < 0)
						continue;
					ask.push_back(sz);
					sz++;
					int a = i * W + j;
					int b = (i + dx[x] * k) * W + j + dy[x] * (K - k);
					add_and({a, b});
				}
			}
		}
	}
	add_or(ask);
	return;
}

Compilation message (stderr)

vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:10:18: warning: unused variable 'cur' [-Wunused-variable]
   10 |  int sz = H * W, cur = H * W - 1;
      |                  ^~~

• Subtask 1: 10 / 10
• Subtask 2: 11 / 11
• Subtask 3: 0 / 11
• Subtask 4: 0 / 15
• Subtask 5: 12 / 12
• Subtask 6: 0 / 8
• Subtask 7: 14 / 14
• Subtask 8: 0 / 19