Compilare: user.cpp: In function ‘void PrintWord(std::string&)’: user.cpp:16: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void PrintLine()’: user.cpp:28: warning: comparison between signed and unsigned integer expressions user.cpp:31: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:51: warning: comparison between signed and unsigned integer expressions user.cpp:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:43: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result