Compilare: user.cpp: In function ‘int main()’: user.cpp:13:15: warning: unused variable ‘poz’ [-Wunused-variable] int i,n,z,poz,aux; ^ user.cpp:16:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&n,&z); ^ user.cpp:18:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&v[i].val); ^