quake0day

class Solution(object):
    def generate(self, numRows):
        """
        :type numRows: int;; rtype: List[List[int]]
        """
        if not numRows: return []
        ret = [[1]]
        numRows -= 1
        while numRows:
            ret.append([1] + [a+b for a,b in zip(ret[-1][:-1], ret[-1][1:])] +[1])

quake0day

import random
class Solution:

    # @param {int} n a positive integer
    # @param {int} k a positive integer
    # @return {Solution} a Solution object
    @classmethod
    def create(cls, n, k):
        # Write your code here
        t = cls(n, k)