Compilare: main.cpp: In function 'int BFS()': main.cpp:79:9: warning: unused variable 'i' [-Wunused-variable] int i,j,aux; ^ main.cpp:79:11: warning: unused variable 'j' [-Wunused-variable] int i,j,aux; ^ main.cpp: In function 'int main()': main.cpp:157:35: 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); ^ main.cpp:165:40: 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); ^