Compilare: user.cpp: In function ‘void bfs(int)’: user.cpp:14:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < v[ coada.front() ].size(); i++ ) { ^ user.cpp: In function ‘int main()’: user.cpp:28:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d", &n, &m, &nod ); ^ user.cpp:30:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &x, &y ); ^