Compilare: user.cpp: In function ‘int main()’: user.cpp:34:9: warning: unused variable ‘prim’ [-Wunused-variable] int prim=1; ^ user.cpp:35:9: warning: unused variable ‘ultim’ [-Wunused-variable] int ultim=0; ^ user.cpp:30:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &n, &k); ^ user.cpp:32:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &a[i]); ^