Compilare: user.cpp: In function ‘int main()’: user.cpp:33:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (auto i = 0; i < best.size(); ++i) ^ user.cpp:16:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:19:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[i]); ^