474 - Ones and Zeroes\.

Medium

You are given an array of binary strings strs and two integers m and n.

Return the size of the largest subset of strs such that there are at most m 0's and n 1's in the subset.

A set x is a subset of a set y if all elements of x are also elements of y.

Example 1:

Input: strs = "10","0001","111001","1","0", m = 5, n = 3

Output: 4

Explanation: The largest subset with at most 5 0's and 3 1's is {"10", "0001", "1", "0"}, so the answer is 4.

Other valid but smaller subsets include {"0001", "1"} and {"10", "1", "0"}.

{"111001"} is an invalid subset because it contains 4 1's, greater than the maximum of 3.

Example 2:

Input: strs = "10","0","1", m = 1, n = 1

Output: 2

Explanation: The largest subset is {"0", "1"}, so the answer is 2.

Constraints:

• 1 <= strs.length <= 600

• 1 <= strs[i].length <= 100

• strs[i] consists only of digits '0' and '1'.

• 1 <= m, n <= 100