Compilare: user.cpp: In function ‘int main()’: user.cpp:41:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < divisors.size() - 1; i++) { ^ user.cpp:42:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i + 1; j < divisors.size(); j++) { ^ user.cpp:36:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(input,"%d",&number); ^