Problem-93.py 文件源码

def worker():
    patterns = genpattern()
    digits = itertools.combinations(range(10),4)
    med = 0
    abcd = None
    targets = None
    for d in digits:
        res = set()
        perm = itertools.permutations(d)
        for p in perm:
            for pat in patterns:
                exp = pat % p
                try:
                    r = eval(exp)
                    if int(r)==r:
                        res.add(int(r))
                except:
                    pass
        n = maxn(res)
        if n > med:
            med = n
            abcd = d
            targets = res
    return sorted(abcd), med, targets