/in/foo.cc: In function 'int main()':
/in/foo.cc:6:10: error: incomplete universal character name \U
system("copy 病毒.exe C:\Users\Administrator\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup");
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/in/foo.cc:6:10: warning: unknown escape sequence: '\A'
/in/foo.cc:6:10: warning: unknown escape sequence: '\A'
/in/foo.cc:6:10: warning: unknown escape sequence: '\R'
/in/foo.cc:6:10: warning: unknown escape sequence: '\M'
/in/foo.cc:6:10: warning: unknown escape sequence: '\W'
/in/foo.cc:6:10: warning: unknown escape sequence: '\S'
/in/foo.cc:6:10: warning: unknown escape sequence: '\P'
/in/foo.cc:6:10: warning: unknown escape sequence: '\S'