Submission #201617

#	Time	Username	Problem	Language	Result	Execution time	Memory
201617		khulegub	Vision Program (IOI19_vision)	C++14	0 / 100	30 ms	2152 KiB

vision

#include "vision.h"
#include <bits/stdc++.h>

#define pb push_back
#define mp make_pair
#define rr first
#define cc second

using namespace std;

typedef pair<int, int> pii;

int hh, ww, kk;

pii to_pair(int x){
	return mp(x / ww, x % ww);
}
int to_linear(pii x){
	return x.rr * ww + x.cc; 
}

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

	// proj y
	hh = H, ww = W, kk = K;
	int carry;

	int one = add_or( {0, 1} ), zero = add_not(one);

	vector<int> proj_hor;

	for (int i = 0; i < ww; i++){
		vector<int> send;
		for (int j = 0; j < hh; j++){
			send.pb(to_linear(mp(i, j)));
		}
		proj_hor.pb(add_or(send));
	}

	for (int i = 0; i < ww; i++){
		vector<int> send;
		for (int j = 0; j <= i; j++){
			send.pb(proj_hor[j]);
		}
		proj_hor[i] = add_xor(send);
	}

	//

	vector<int> proj_ver;

	for (int i = 0; i < hh; i++){
		vector<int> send;
		for (int j = 0; j < ww; j++){
			send.pb(to_linear(mp(j, i)));
		}
		proj_ver.pb(add_or(send));
	}

	for (int i = 0; i < hh; i++){
		vector<int> send;
		for (int j = 0; j <= i; j++){
			send.pb(proj_ver[j]);
		}
		proj_ver[i] = add_xor(send);
	}

	// // max val = h + w
	// // log_2 (400) + 1 = 9

	int bitlen = 10;

	vector<int> counter;

	// initialize
	for (int i = 0; i < bitlen; i++){
		counter.pb(add_and({zero, 0}));
	}


	for (int j = 0; j < ww; j++){
		int adder = proj_hor[j];

		for (int i = 0; i < bitlen; i++){
			int tmp = counter[i];
			counter[i] = add_xor({counter[i], adder});
			adder = add_and({tmp, adder});
		}
	}
	for (int j = 0; j < hh; j++){
		int adder = proj_ver[j];

		for (int i = 0; i < bitlen; i++){
			int tmp = counter[i];
			counter[i] = add_xor({counter[i], adder});
			adder = add_and({tmp, adder});
		}
	}

	kk = kk + 2;
	int last = one;
	vector<int> kkbits;

	for (int i = 0; i < bitlen; i++){
		kkbits.pb(kk % 2);
		kk /= 2;
	}

	for (int i = 0; i < bitlen; i++){
		if (kkbits[i]){
			last = add_and({last, counter[i]});
		}
		else{
			last = add_and({last, add_not(counter[i]) });
		}
	}
}

Compilation message (stderr)

vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:26:6: warning: unused variable 'carry' [-Wunused-variable]
  int carry;
      ^~~~~

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