Compilare: user.cpp: In function ‘int BFS()’: user.cpp:40:7: warning: unused variable ‘i’ [-Wunused-variable] int i,j,aux; ^ user.cpp:40:9: warning: unused variable ‘j’ [-Wunused-variable] int i,j,aux; ^ user.cpp: In function ‘int main()’: user.cpp:79:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d %d",&n,&m,&G); ^ user.cpp:83:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d %d",&i,&j,&cc); ^