Compilare: user.cpp: In function ‘int main()’: user.cpp:58:27: warning: unused variable ‘aux’ [-Wunused-variable] int n,m,i,j,nh,b,e,nr,aux; ^ user.cpp:61:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d" ,&n,&m); ^ user.cpp:64:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&v[i]); ^ user.cpp:66:44: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d" ,&Q[i].st,&Q[i].dr); ^