[LeetCode] Perfect Squares

1 · · Feb. 8, 2022, 9:16 a.m.
279. Perfect Squares 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. ...