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Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | Home Page | Category: Computing | 202 Views, 17217 Search Bots | 98 Words

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Hi, here's your problem today. This problem was recently asked by Twitter:

You are given an array of k sorted singly linked lists. Merge the linked lists into a single sorted linked list and return it.

Here's your starting point:


class Node(object):
def __init__(self, val, next=None):
self.val = val
self.next = next

def __str__(self):
c = self
answer = ""
while c:
answer += str(c.val) if c.val else ""
c = c.next
return answer

def merge(lists):
# Fill this in.

a = Node(1, Node(3, Node(5)))
b = Node(2, Node(4, Node(6)))
print merge([a, b])
# 123456
Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | Home Page | Cateogry: Computing | 202 Views, 17217 Search Bots | 98 Words Subscribe to Feed Burner

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