--------------------Configuration: 1 - Win32 Debug--------------------
Compiling...
1.c
D:\1\1.c(20) : warning C4013: 'sleep' undefined; assuming extern returning int
D:\1\1.c(21) : warning C4013: 'clrscr' undefined; assuming extern returning int
Linking...
1.obj : error LNK2001: unresolved external symbol _clrscr
1.obj : error LNK2001: unresolved external symbol _sleep
Debug/1.exe : fatal error LNK1120: 2 unresolved externals
Error executing link.exe.
1.exe - 3 error(s), 2 warning(s)
