vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:7:17: error: 'h' was not declared in this scope
7 | for (int i=0;i<h;++i)
| ^
vision.cpp:8:18: error: 'w' was not declared in this scope
8 | for (int j=0;j<w;++j)
| ^
vision.cpp:12:18: error: 'add_and' was not declared in this scope
12 | v.push_back(add_and({i*W+j,i*W+k}))
| ^~~~~~~
vision.cpp:13:19: error: 'k' was not declared in this scope
13 | for (int k=i+1;k<h&&k-j<=K;++k)
| ^
vision.cpp:26:2: error: 'add_or' was not declared in this scope
26 | add_or(v);
| ^~~~~~