EularProject 36：2进制和10进制回文数

华电北风吹

天津大学认知计算与应用重点实验室

完成日期：2015/7/29

Double-base palindromes

Problem 36

The decimal number, 585 = 10010010012 (binary), is palindromic in both bases.

Find the sum of all numbers, less than one million, which are palindromic in base 10 and base 2.

(Please note that the palindromic number, in either base, may not include leading zeros.)

Answer:

872187

Completed on Wed, 29 Jul 2015, 16:04

result=0
for i in range(1,1000000):
    a=bin(i)[2::]
    b=a[::-1]
    if a==b:
        a=str(i)
        b=a[::-1]
        if a==b:
            result+=i

print(result)