This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "vision.h"
#include <bits/stdc++.h>
using namespace std;
void construct_network(int H, int W, int K) {
	for(int i = 0; i < H; i++){
		for(int j = 0; j < W; j++){
			if(add_not(i * W + j)) continue;
			vector<int> v;
			for(int k = 0; k < H; k++){
				int x = i + k, y = j + K - k;
				if(x < 0 || x >= H || y < 0 || y >= W) continue;
				v.push_back(x * W + y);
				x = i + k, y = j - (K - k);
				if(x < 0 || x >= H || y < 0 || y >= W) continue;
				v.push_back(x * W + y);
			}
			if(add_or(v)) return;
		}
	}
}
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