Compilare: user.cpp: In function ‘void get(std::vector<int, std::allocator<int> >&, std::vector<int, std::allocator<int> >&)’: user.cpp:22: warning: comparison between signed and unsigned integer expressions user.cpp:39: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:46: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:49: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result