Compilare: user.cpp:4: warning: ‘typedef’ was ignored in this declaration user.cpp: In function ‘int main()’: user.cpp:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:47: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:53: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:61: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:44: warning: ‘rj’ may be used uninitialized in this function user.cpp:44: warning: ‘ri’ may be used uninitialized in this function user.cpp:44: warning: ‘ji’ may be used uninitialized in this function user.cpp:44: warning: ‘jj’ may be used uninitialized in this function user.cpp:44: warning: ‘x’ may be used uninitialized in this function user.cpp:44: warning: ‘y’ may be used uninitialized in this function