#include "vision.h"
#include "bits/stdc++.h"
using namespace std;
#define ll long long
#define forn(i,n) for(int i=0;i<n;i++)
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(),v.rend()
#define pb push_back
#define sz(a) (int)a.size()
/*
int add_not(int N){}
int add_and(vector<int> Ns){}
int add_or(vector<int> Ns){}
int add_xor(vector<int> Ns){}
*/
void construct_network(int H, int W, int K) {
vector<int> indices;
bool vis[H][W][H][W];
forn(a, H) forn(b, W) forn(c, H) forn(d, W) vis[a][b][c][d] = false;
for(int i = 0; i < H; ++i) {
for(int j = 0; j < W; ++j) {
for(int x = 0; x < H; ++x) {
for(int y = 0; y < W; ++y) {
if(x == i && j == y) continue;
if(vis[i][j][x][y]) continue;
if(abs(x - i) + abs(y - j) != k) continue;
vis[i][j][x][y] = vis[x][y][i][j] = true;
indices.pb(add_and({i * H + j, x * H + y}));
}
}
}
}
add_or(indices);
}
/*
void solve() {
}
int32_t main() {
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
int t = 1;
//cin >> t;
while(t--) {
solve();
}
}
*/
Compilation message
vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:32:51: error: 'k' was not declared in this scope
32 | if(abs(x - i) + abs(y - j) != k) continue;
| ^
