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# [118. Pascal's Triangle](https://leetcode.com/problems/pascals-triangle/
## 题目
Given a non-negative integer numRows, generate the first numRows of Pascal's triangle.
![](https://upload.wikimedia.org/wikipedia/commons/0/0d/PascalTriangleAnimated2.gif)
**Note:** In Pascal's triangle, each number is the sum of the two numbers directly above it.
**Example:**
```
Input: 5
Output:
[
[1],
[1,1],
[1,2,1],
[1,3,3,1],
[1,4,6,4,1]
]
```
## 题目大意
给一个正整数来生成一个帕斯卡三角形
## 解题思路