<doocs>1009.Complement of Base 10 Integer_1.py
def bitwiseComplement( n: int) -> int:
    if n == 0:
        return 1
    ans = 0
    find = False
    for i in range(30, -1, -1):
        b = n & (1 << i)
        if not find and b == 0:
            continue
        find = True
        if b == 0:
            ans |= 1 << i
    return ans
def sample_funcname ( var_0 : int ) -> int :
    if var_0 == 0 :
        return 1
    var_4 = 0
    var_6 = False
    for var_9 in range ( 30 , - 1 , - 1 ) :
        var_10 = var_0 & ( 1 << var_9 )
        if not var_6 and var_10 == 0 :
            continue
        var_6 = True
        if var_10 == 0 :
            var_4 |= 1 << var_9
    return var_4
