Compilare: user.cpp: In function ‘int main()’: user.cpp:22:45: warning: variable ‘j’ set but not used [-Wunused-but-set-variable] long long i=0,n=0,p=0,s=0,k=0,ok=1,mn=0,j=0,z=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",&n,&p); ^ user.cpp:27:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld",&v[i].r); ^