Python challenge Level 9 & 10

9略过，有兴趣的g.cn
10代码如下：

#!/usr/bin/python
import sys
import string
def seq(x):
    result = ''
    i = 0
    while i < len(x):
        #print 'i:',i,x[i]
        p = x[i]
        j = 0
        while i+j<len(x) and x[i+j]==p:
            j+=1
        result+=str(j)
        result+=p
        i = i+j
    return result

def main():
    a=[]
    x = '1'
    for i in range(30):
        a.append(seq(x))
        x = seq(x)
        print i+1,len(x)

if __name__=='__main__':
    main()

贴一段别人的代码：这就是差距。

x="1"
for each in range(30):
    x="".join([str(len(i+j))+i for i,j in re.findall(r"(\d)(\1*)", x)])
print len(x)