Compilare: main.cpp: In function 'bool isValidCoord(int, int, Matrix&)': main.cpp:24:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | return x >= 0 && y >= 0 && x < matrix.size() && y < matrix[0].size(); | ~~^~~~~~~~~~~~~~~ main.cpp:24:53: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | return x >= 0 && y >= 0 && x < matrix.size() && y < matrix[0].size(); | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int bfs(Matrix&)': main.cpp:57:10: warning: overflow in conversion from 'float' to 'int' changes value from '+Inff' to '2147483647' [-Woverflow] 57 | return INFINITY; | ^~~~~~~~