<doocs>1239.Maximum Length of a Concatenated String with Unique Characters_1.py
def ones_count(x):
    c = 0
    while x:
        x &= x - 1
        c += 1
    return c
def sample_funcname ( var_0 ) :
    var_2 = 0
    while var_0 :
        var_0 &= var_0 - 1
        var_2 += 1
    return var_2
