阿里笔试08.14算法岗

阿里0814，算法岗第二题  咋做呀，想着暴力蹭点分，一点也没蹭上呀，怀疑又没理解题意。。。o(╥﹏╥)o

def dp(s,dicts):
    # print(1111)
    global count
    cur = ''.join(s)
    # print(cur)
    if cur in dicts:
        return
    dicts.add(cur)
    print(cur)
    count = (count+1)%1000000007
    # print(cur)
    # print(count)
    index = 0
    while index<length-1:
        pre = int(s[index])
        last = int(s[index+1])
        if pre>0 and last<9:
            s[index] = str(pre-1)
            s[index+1] = str(last+1)
            # if ''.join(s) not in dicts:
            dp(s,dicts)
            s[index] = str(pre)
            s[index + 1] = str(last)
        if pre<9 and last>0:
            s[index] = str(pre+1)
            s[index+1] = str(last-1)
            # if ''.join(s) not in dicts:
            dp(s,dicts)
            s[index] = str(pre)
            s[index + 1] = str(last)
        index+=1

q = int(input())
for i in range(q):
    s = [each for each in input()]
    if len(s)<2:
        print(0)
        continue
    count = -1
    length = len(s)
    dicts = set()
    dp(s,dicts)
    print(count)