Compilare: user.cpp: In function ‘int main()’: user.cpp:29:5: warning: variable ‘p1’ set but not used [-Wunused-but-set-variable] int p1,p2; ^ user.cpp:63:5: warning: unused variable ‘s’ [-Wunused-variable] int s=0; ^ user.cpp:15:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(pFile,"%lld",&n); ^ user.cpp:18:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(pFile,"%lld",&cursor); ^ user.cpp:54:14: warning: ‘p2’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(int i=p2+1;i<=n;i++) ^