Compilare: main.cpp: In function 'std::vector<point_wall> Normalize(std::vector<point_wall>)': main.cpp:25:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < A.size(); i++) ~~^~~~~~~~~~ main.cpp: In function 'int32_t main()': main.cpp:104:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < restr.size() - 1; i++) ~~^~~~~~~~~~~~~~~~~~ main.cpp:82:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("plaja2.in", "r", stdin); ^ main.cpp:83:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("plaja2.out", "w", stdout); ^