Compilare: user.cpp: In function ‘int main()’: user.cpp:22:17: warning: unused variable ‘p’ [-Wunused-variable] long long r,p,d,d1,ok=0,nr,nr1,i,x,s=0; ^ user.cpp:23:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld%lld",&r,&d); ^ user.cpp:37:67: warning: ‘nr1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (ok) if (nr1-ptr(d1,r-i+1)-ptr(d1,i-1)<=0||(d==d1&&nr1/2-(ptr(d1,r-i+1)-ptr(d1,i-1))/2<=0)) s--;} ^