How to Solve Ones and Zeroes Problem
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Ones and Zeroes
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 ...
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Understanding the Ones and Zeroes Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
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.
Ones and Zeroes
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Examples
strs = ["10","0001","111001","1","0"], m = 5, n = 3
4
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.
strs = ["10","0","1"], m = 1, n = 1
2
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
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