Compilare: main.cpp: In function 'int main()': main.cpp:68:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<cell>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for (int i = 0; i < v.size(); ++i) | ~~^~~~~~~~~~ main.cpp:91:10: warning: 'start.cell::y' may be used uninitialized [-Wmaybe-uninitialized] 91 | print(start.x, start.y); | ~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:67:10: note: 'start.cell::y' was declared here 67 | cell start; | ^~~~~ main.cpp:91:10: warning: 'start.cell::x' may be used uninitialized [-Wmaybe-uninitialized] 91 | print(start.x, start.y); | ~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:67:10: note: 'start.cell::x' was declared here 67 | cell start; | ^~~~~