Compilare: user.cpp: In function ‘void update(int, int, std::vector<int>&, std::vector<int>&)’: user.cpp:46:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (part == b.size() - 1) { ^ user.cpp:39:26: warning: unused variable ‘length’ [-Wunused-variable] int minim, right, i, length = v.size(); ^ user.cpp: In function ‘int main()’: user.cpp:83:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ user.cpp:86:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &x); ^