Compilare: user.cpp: In function ‘int main()’: user.cpp:40:24: warning: unused variable ‘b’ [-Wunused-variable] double s=0,minn, a,b,d; ^ user.cpp:40:26: warning: unused variable ‘d’ [-Wunused-variable] double s=0,minn, a,b,d; ^ user.cpp:41:24: warning: unused variable ‘w’ [-Wunused-variable] int unit[n][2],z=0,w=0; ^ user.cpp:23:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(si,"%i %lli",&n,&h); ^ user.cpp:29:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(si,"%i %i",&p.dist,&c); ^ user.cpp:35:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(si,"%i %i",&p.dist,&c); ^