Compilare: user.cpp: In function ‘void DUMPADIACENTA(std::vector<int, std::allocator<int> >*)’: user.cpp:33: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void drum(int*, int, std::vector<int, std::allocator<int> >*)’: user.cpp:56: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:96: warning: comparison between signed and unsigned integer expressions user.cpp:69: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:70: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:73: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:77: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result