Submission #425961

#	Time	Username	Problem	Language	Result	Execution time	Memory
425961		amoo_safar	Vision Program (IOI19_vision)	C++17	100 / 100	21 ms	1748 KiB

vision

#include "vision.h"

#define pb push_back

using namespace std;

const int Log = 10;
const int N = 202;

int X[Log];
int r[N], c[N];

void Plus(int var){
	for(int i = 0; i < Log; i++){
		int tmp = add_and({var, X[i]});
		X[i] = add_xor({var, X[i]});
		var = tmp;
	}
}

void construct_network(int H, int W, int K) {
	if(H * W == 2){
		int en = add_or({0, 1});
		return ;
	}
	
	vector<int> Ns;
	for(int i = 0; i < Log; i++)
		X[i] = add_and({0, 1, 2});
	
	for(int i = 0; i < H; i++){
		Ns.clear();
		for(int j = 0; j < W; j++){
			Ns.pb(i * W + j);
		}
		r[i] = add_xor(Ns);
	}

	for(int i = 0; i < W; i++){
		Ns.clear();
		for(int j = 0; j < H; j++){
			Ns.pb(j * W + i);
		}
		c[i] = add_xor(Ns);
	}
	for(int i = 1; i < H; i++)
		r[i] = add_xor({r[i], r[i - 1]});
	for(int i = 1; i < W; i++)
		c[i] = add_xor({c[i], c[i - 1]});
	
	for(int i = 0; i < H; i++)
		Plus(r[i]);
	for(int i = 0; i < W; i++)
		Plus(c[i]);
	
	Ns.clear();
	for(int i = 0; i < Log; i++){
		if(K >> i & 1){
			X[i] = add_not(X[i]);
		}
		Ns.pb(X[i]);
	}
	add_not(add_or(Ns));
}

Compilation message (stderr)

vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:23:7: warning: unused variable 'en' [-Wunused-variable]
   23 |   int en = add_or({0, 1});
      |       ^~

• 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