import t, c


def printf(fmt: t.CConst | str, *args) -> t.CInt | t.State: pass
def fprintf(stream: bytes, fmt: t.CConst | str, *args) -> t.CInt | t.State: pass
def sprintf(buf: bytes, fmt: t.CConst | str, *args) -> t.CInt | t.State: pass
def snprintf(buf: bytes, size: t.CSizeT, fmt: t.CConst | str, *args) -> t.CInt | t.State: pass
def puts(s: t.CConst | str) -> t.CInt | t.State: pass
def fputs(s: t.CConst | str, stream: bytes) -> t.CInt | t.State: pass
def fgets(buf: bytes, size: t.CInt, stream: bytes) -> bytes | t.State: pass
def fflush(stream: bytes) -> t.CInt | t.State: pass

# 标准流指针（全局变量，仅声明供 printf 等函数使用）
stdin:  bytes = 0
stdout: bytes = 0
stderr: bytes = 0