C/Visual C - errores que da

Compiling A:\AHORC.CPP:
Error A:\AHORC.CPP 8: Declaration syntax error
Error A:\AHORC.CPP 13: Variable ´bool´ is initialized more than once
Error A:\AHORC.CPP 13: Declaration syntax error
Error A:\AHORC.CPP 28: Function ´textbackground´ should have a prototype
Error A:\AHORC.CPP 38: Function ´textcolor´ should have a prototype
Error A:\AHORC.CPP 40: Function ´cprintf´ should have a prototype
Error A:\AHORC.CPP 67: Function ´verificarletra´ should have a prototype
Error A:\AHORC.CPP 73: Function ´aciertorepetido´ should have a prototype
Warning A:\AHORC.CPP 113: Function should return a value
Error A:\AHORC.CPP 123: Function ´cprintf´ should have a prototype
Error A:\AHORC.CPP 132: Variable ´bool´ is initialized more than once
Error A:\AHORC.CPP 132: Declaration syntax error