Solution (leetcode-in-java 1.19 API)

java.lang.Object
- g0201_0300.s0279_perfect_squares.Solution

```
public class Solution
extends Object
```
279 - Perfect Squares.
Medium

Given an integer n, return the least number of perfect square numbers that sum to n.

A perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with itself. For example, 1, 4, 9, and 16 are perfect squares while 3 and 11 are not.

Example 1:

Input: n = 12

Output: 3

Explanation: 12 = 4 + 4 + 4.

Example 2:

Input: n = 13

Output: 2

Explanation: 13 = 4 + 9.

Constraints:
- 1 <= n <= 10⁴

- Constructor Summary
  
  Constructors
  Constructor Description
  
  Solution()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  int numSquares(int n)
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- Solution
```
public Solution()
```

Method Detail
- numSquares
```
public int numSquares(int n)
```