使数组中的数 组成的数值最小

python 算法

eg：array = [12, 3, 4, 5]
12345 是其最小值

# coding=utf-8
import functools
class Solution:
    def print_min_number(self, numbers):
        cmp = lambda x, y: int(str(x)+str(y))- int(str(y)+str(x))
        numbers.sort(key=functools.cmp_to_key(cmp))
        result = ''.join(map(str, numbers))
        return result
s = Solution()
numbers = [3, 5, 2, 4, 10, 34, 2345, 9876]
print(s.print_min_number(numbers))