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# 0478. Generate Random Point in a Circle

<https://leetcode.com/problems/generate-random-point-in-a-circle>

## Description

Given the radius and the position of the center of a circle, implement the function `randPoint` which generates a uniform random point inside the circle.

Implement the `Solution` class:

* `Solution(double radius, double x_center, double y_center)` initializes the object with the radius of the circle `radius` and the position of the center `(x_center, y_center)`.
* `randPoint()` returns a random point inside the circle. A point on the circumference of the circle is considered to be in the circle. The answer is returned as an array `[x, y]`.

**Example 1:**

```
**Input**
["Solution", "randPoint", "randPoint", "randPoint"]
[[1.0, 0.0, 0.0], [], [], []]
**Output**
[null, [-0.02493, -0.38077], [0.82314, 0.38945], [0.36572, 0.17248]]
**Explanation**
Solution solution = new Solution(1.0, 0.0, 0.0);
solution.randPoint(); // return [-0.02493, -0.38077]
solution.randPoint(); // return [0.82314, 0.38945]
solution.randPoint(); // return [0.36572, 0.17248]
```

**Constraints:**

* `0 < radius <= 108`
* `-107 <= x_center, y_center <= 107`
* At most `3 * 104` calls will be made to `randPoint`.

## ac

```java
```