Submission #425155

#	Time	Username	Problem	Language	Result	Execution time	Memory
425155		schse	Vision Program (IOI19_vision)	C++17	26 / 100	10 ms	1100 KiB

vision

#include "vision.h"
#ifndef EVAL
#include "grader.cpp"
#endif
#include <bits/stdc++.h>
using namespace std;

void construct_network(int H, int W, int K)
{

	if (H == 1 || W == 1)
	{
		vector<int> lr;
		for (int i = 0; i < H * W - K; i++)
			lr.push_back(add_and({i, i + K}));
		int N = add_or(lr);
		return;
	}

	vector<int> xorrows;
	for (int r = 0; r < H; r++)
	{
		vector<int> v(W);
		iota(v.begin(), v.end(), r * W);
		xorrows.push_back(add_xor(v));
	}
	int diffrentcols = add_or(xorrows);
	int iscrows;
	{
		vector<int> c;
		for (int r = 1; r < H; r++)
		{
			c.push_back(add_and({xorrows[r], xorrows[r - 1]}));
		}
		iscrows = add_or(c);
	}

	vector<int> xorcols;
	for (int c = 0; c < W; c++)
	{
		vector<int> v;
		for (int r = 0; r < H; r++)
			v.push_back(c + r * W);
		xorcols.push_back(add_xor(v));
	}

	int diffrentrows = add_or(xorcols);
	int isccols;
	{
		vector<int> c;
		for (int r = 1; r < W; r++)
		{
			c.push_back(add_and({xorcols[r], xorcols[r - 1]}));
		}
		isccols = add_or(c);
	}
	add_and({add_xor({diffrentcols, diffrentrows}), add_xor({isccols, iscrows})});
	return;
}

Compilation message (stderr)

vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:16:7: warning: unused variable 'N' [-Wunused-variable]
   16 |   int N = add_or(lr);
      |       ^

• Subtask 1: 0 / 10
• Subtask 2: 0 / 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