Problem 4:Largest palindrome product

题：A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 99.

Find the largest palindrome made from the product of two 3-digit numbers.

代码：

def fun1(num):    for arr in str(num).split():        for i in range(len(arr)):            if(arr[i]!=arr[len(arr)-1-i]):                return False    return True    def fun2(num):        for i in range(100,1000):        if(num%i==0 and num/i>=100 and num/i<1000):            return True    return False            for num in range(1000000,10000,-1):    if(fun1(num)):        if(fun2(num)):            print num            break