Compilare: user.cpp: In function ‘long long int f(long long int)’: user.cpp:10:17: warning: unused variable ‘poz’ [-Wunused-variable] int nr, p, s, poz, z; ^ user.cpp:10:22: warning: unused variable ‘z’ [-Wunused-variable] int nr, p, s, poz, z; ^ user.cpp: In function ‘int main()’: user.cpp:57:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d", &q); ^ user.cpp:59:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%lld%lld", &a, &b); ^