119. Pascal‘s Triangle II

题目：
Given an integer rowIndex, return the rowIndexth (0-indexed) row of the Pascal's triangle.
In Pascal's triangle, each number is the sum of the two numbers directly above it as shown:

Example 1:
Input: rowIndex = 3
Output: [1,3,3,1]

Example 2:
Input: rowIndex = 0
Output: [1]

Example 3:
Input: rowIndex = 1
Output: [1,1]

Constraints:
0 <= rowIndex <= 33 代码：
class Solution { public:     vector getRow(int rowIndex) {         vector cur, nex

119. Pascal‘s Triangle II最先出现在Python成神之路。