Submission #143604

#	Time	Username	Problem	Language	Result	Execution time	Memory
143604		kdh9949	Vision Program (IOI19_vision)	C++17	10 / 100	6 ms	1912 KiB

vision

#include "vision.h"
using namespace std;

#define pb push_back

const int N = 405;

int xpy[N], xmy[N], a[N], b[N];
vector<int> pv[N], mv[N], av[N], bv[N], v;

int por1(int x){
	for(int i = 2; i * i <= x; i++) if(x % i == 0) return 1;
	return 1;
}

void construct_network(int H, int W, int K) {
	for(int i = 0; i < H; i++) for(int j = 0; j < W; j++){
		pv[i + j].pb(i * W + j);
		mv[H - 1 - i + j].pb(i * W + j);
	}
	for(int i = 0; i <= H + W - 2; i++){
		xpy[i] = add_or(pv[i]);
		xmy[i] = add_or(mv[i]);
	}
	for(int i = 0; i <= H + W - 2; i++) for(int j = i + 1; j <= H + W - 2; j++){
		int d = j - i;
		if(d % K || !por1(d / K)) continue;
		vector<int> t(2);
		t[0] = xpy[i]; t[1] = xpy[j];
		av[j - i].pb(add_and(t));
		t[0] = xmy[i]; t[1] = xmy[j];
		bv[j - i].pb(add_and(t));
	}
	for(int i = 1; i <= H + W - 2; i++){
		if(av[i].empty()) continue;
		a[i] = add_or(av[i]);
		b[i] = add_or(bv[i]);
	}
	for(int i = K + 1; i <= H + W - 2; i++){
		if(!a[i]) continue;
		v.push_back(add_not(a[i]));
		v.push_back(add_not(b[i]));
	}
	vector<int> t(2);
	t[0] = a[K]; t[1] = b[K];
	v.push_back(add_or(t));
	add_and(v);
}

• Subtask 1: 10 / 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