Compilare: user.cpp: In function ‘int main()’: user.cpp:10:13: warning: variable ‘st’ set but not used [-Wunused-but-set-variable] int n,i,st,dr,l,ok; ^ user.cpp:10:19: warning: unused variable ‘l’ [-Wunused-variable] int n,i,st,dr,l,ok; ^ user.cpp:10:21: warning: unused variable ‘ok’ [-Wunused-variable] int n,i,st,dr,l,ok; ^ user.cpp:12:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&n); ^ user.cpp:14:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%lld",&v[i]); ^