제출 #1048515

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1048515		dozer	Vision Program (IOI19_vision)	C++14	26 / 100	5 ms	1140 KiB

vision

#include "vision.h"
#include <bits/stdc++.h>
using namespace std;
#define sp " "
#define endl "\n"
#define pb push_back
#define pii pair<int, int>
#define st first
#define nd second
#define fileio() freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout)
#define fastio() cin.tie(0), ios_base::sync_with_stdio(0)
#define LL node * 2
#define RR node * 2 + 1
#define ll long long


void construct_network(int H, int W, int K) {
	auto ind = [&](int x, int y){
		return x * W + y; 
	};


	map<int, int> hor, hor_dist, ver, ver_dist;
	for (int i = 0; i < H; i++){
		vector<int> tmp;
		for (int j = 0; j < W; j++) tmp.pb(ind(i, j));
		hor[i] = add_or(tmp);
	}

	for (int i = 0; i < W; i++){
		vector<int> tmp;
		for (int j = 0; j < H; j++) tmp.pb(ind(j, i));
		ver[i] = add_or(tmp);
	}

	vector<int> all;
	for (int i = 0; i < H; i++) all.pb(hor[i]);
	hor_dist[0] = add_xor(all);
	for (int i = 1; i < H; i++){
		if (i != K) continue;
		hor_dist[i] = add_and({hor[0], hor[i]});
		for (int j = 1; j + i < H; j++){
			int curr = add_and({hor[j], hor[j + i]});
			hor_dist[i] = add_or({hor_dist[i], curr});
		}
	}

	all.clear();
	for (int i = 0; i < W; i++) all.pb(ver[i]);
	ver_dist[0] = add_xor(all);
	for (int i = 1; i < W; i++){
		if (i != K) continue;
		ver_dist[i] = add_and({ver[0], ver[i]});
		for (int j = 1; j + i < W; j++){
			int curr = add_and({ver[j], ver[j + i]});
			ver_dist[i] = add_or({ver_dist[i], curr});
		}
	}

	int res = -1;
	for (int i = 0; i <= K; i++){
		if (i < H && K - i < W){
			if (hor_dist[i] == 0 || ver_dist[K - i] == 0) continue;
			//cerr<<i<<sp<<K - i<<endl;
			int curr = add_and({hor_dist[i], ver_dist[K - i]});
			if (res == -1) res = curr;
			else res = add_or({curr, res});
		}
	}
}
/*

static const int MAX_INSTRUCTIONS = 10000;
static const int MAX_INPUTS = 1000000;

static const int _AND = 0;
static const int _OR = 1;
static const int _XOR = 2;
static const int _NOT = 3;

static inline bool increasing(int a, int b, int c) {
	return a <= b && b <= c;
}

[[noreturn]] static inline void error(string message) {
	printf("%s\n", message.c_str());
	exit(0);
}

class InstructionNetwork {

	struct Instruction {
		int type;
		vector<int> input_indexes;

		inline Instruction(int _type, const vector<int>& _input_indexes):
				type(_type), input_indexes(_input_indexes) {
		}

		inline int apply(int a, int b) const {
			switch (type) {
				case _AND:
					return a & b;
				case _OR:
					return a | b;
				case _XOR:
					return a ^ b;
				default:
					return 0;
			}
		}

		inline int compute(const vector<int>& memory_cells) const {
			int r = memory_cells[input_indexes[0]];
			if (type == _NOT)
				return 1 - r;
			for (int j = 1; j < (int)input_indexes.size(); j++)
				r = apply(r, memory_cells[input_indexes[j]]);
			return r;
		}
	};

	int input_size;
	int total_inputs;
	vector<Instruction> instructions;

public:

	inline void init(int _input_size) {
		this->input_size = _input_size;
		this->total_inputs = 0;
		this->instructions.clear();
	}

	inline int add_instruction(int type, const vector<int>& input_indexes) {
		if (input_indexes.size() == 0)
			error("Instruction with no inputs");

		if (instructions.size() + 1 > MAX_INSTRUCTIONS)
			error("Too many instructions");

		if (total_inputs + input_indexes.size() > MAX_INPUTS)
			error("Too many inputs");

		instructions.emplace_back(type, input_indexes);
		total_inputs += input_indexes.size();
		int new_index = input_size + (int)instructions.size() - 1;

		for (int input_index : input_indexes)
			if (!increasing(0, input_index, new_index-1))
				error("Invalid index");

		return new_index;
	}

	inline int compute(vector<int> &memory_cells) const {
		for (auto &instruction : instructions)
			memory_cells.push_back(instruction.compute(memory_cells));
		return memory_cells.back();
	}
};


static InstructionNetwork instructionNetwork;

int main() {
	fileio();
	int H, W, K;
	assert(3 == scanf("%d%d%d", &H, &W, &K));

	FILE *log_file = fopen("log.txt","w");

	instructionNetwork.init(H * W);
	construct_network(H, W, K);

	while (true) {
		int rowA, colA, rowB, colB;
		assert(1 == scanf("%d", &rowA));
		if (rowA == -1)
			break;
		assert(3 == scanf("%d%d%d", &colA, &rowB, &colB));

		if ((!increasing(0, rowA, H-1)) ||
			(!increasing(0, colA, W-1)) ||
			(!increasing(0, rowB, H-1)) ||
			(!increasing(0, colB, W-1)) ||
			(rowA == rowB && colA == colB)) {
			printf("-1\n");
			fprintf(log_file, "-1\n");
			fflush(stdout);
			fflush(log_file);
			continue;
		}

		vector<int> memory_cells;
		for (int row = 0; row < H; row++)
			for (int col = 0; col < W; col++) {
				bool active = (row == rowA && col == colA) || (row == rowB && col == colB);
				memory_cells.push_back(active ? 1 : 0);
			}
		int computation_result = instructionNetwork.compute(memory_cells);

		printf("%d\n", computation_result);
		fflush(stdout);

		for(int i = 0; i < (int)memory_cells.size(); i++)
			fprintf(log_file, (i ? " %d" : "%d"), memory_cells[i]);
		fprintf(log_file, "\n");
		fflush(log_file);
	}
	fclose(stdin);
}

int add_and(vector<int> Ns) {
	return instructionNetwork.add_instruction(_AND, Ns);
}

int add_or(vector<int> Ns) {
	return instructionNetwork.add_instruction(_OR, Ns);
}

int add_xor(vector<int> Ns) {
	return instructionNetwork.add_instruction(_XOR, Ns);
}

int add_not(int N) {
	vector<int> Ns = {N};
	return instructionNetwork.add_instruction(_NOT, Ns);
}
*/

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