Compilare: user.cpp: In function ‘void bfs()’: user.cpp:24:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < graf[nodAct].size(); i++) { ^ user.cpp: In function ‘int main()’: user.cpp:49:38: warning: narrowing conversion of ‘v’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] graf[u].push_back((cell){v, d}); ^ user.cpp:50:38: warning: narrowing conversion of ‘u’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] graf[v].push_back((cell){u, d}); ^