Compilare: user.cpp: In function ‘int main()’: user.cpp:24:13: warning: unused variable ‘s’ [-Wunused-variable] int s = 0,nr = 0; ^ user.cpp:26:13: warning: variable ‘poz1’ set but not used [-Wunused-but-set-variable] int poz1,poz2; ^ user.cpp:26:18: warning: variable ‘poz2’ set but not used [-Wunused-but-set-variable] int poz1,poz2; ^ user.cpp:15:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d %d",&n,&k); ^ user.cpp:18:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&v[i]); ^