Compilare: user.cpp: In function ‘void bellmanford(int, int, int)’: user.cpp:23:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int j = 0; j < v[ coada.front() ].size(); j++ ) { ^ user.cpp: In function ‘bool verif(int, int)’: user.cpp:35:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < v[i].size(); j++ ) { ^ user.cpp: In function ‘int main()’: user.cpp:47:45: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &nr_nod, &nr_muchii ); ^ user.cpp:49:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d", &x, &y, &c ); ^