变量

参考资料

• 变量 - OI Wiki

变量范围

变量类型	字节	最大值	最小值
bool	$1$	$1$	$0$
char	$1$	CHAR_MAX	CHAR_MIN
signed char	$1$	$127$ SCHAR_MAX	$-128$ SCHAR_MIN
unsigned char	$1$	$255$ UCHAR_MAX	$0$
short	$2$	$32767$ SHRT_MAX	$-32768$ SHRT_MIN
unsigned short	$2$	$65535$ USHRT_MAX	$0$
int	$4$	$2147483647$ INT_MAX	$-2147483648$ INT_MIN
unsigned int	$4$	$4294967295$ UINT_MAX	$0$
long	$4/8$	LONG_MAX	LONG_MIN
long long	$8$	$9223372036854775807$ LLONG_MAX	$-9223372036854775808$ LLONG_MIN
unsigned long long	$8$	$18446744073709551615$ ULLONG_MAX	$0$
float	$4$	$3.40282\times 10^{38}$ FLT_MAX	$1.17549\times 10^{-38}$ FLT_MIN
double	$8$	$1.79769\times 10^{308}$ DBL_MAX	$2.22507\times 10^{-308}$ DBL_MIN
long double	$16$	$1.18973\times 10^{4932}$	$3.3621\times 10^{-4932}$