What is the time complexity of LeetCode 2546. Apply Bitwise Operations to Make Strings Equal?

The Python solution on this page runs in O(n), where n is the length of the string.

What is the space complexity of LeetCode 2546. Apply Bitwise Operations to Make Strings Equal?

The Python solution on this page uses O(1) auxiliary space.

Apply Bitwise Operations to Make Strings Equal — LeetCode 2546 Python Solution

MediumBit ManipulationString

Problem: #2546
Pattern: Bit Manipulation
Reading time: 2 min
Source: leetcode.com

The problem

You are given two 0-indexed binary strings s and target of the same length n. You can do the following operation on s any number of times: Choose two different indices i and j where 0 <= i, j < n.

Example

Input: s = "1010", target = "0110"
Output: true
Explanation: We can do the following operations:

Python solution

Python

class Solution:
    def makeStringsEqual(self, s: str, target: str) -> bool:
        return ("1" in s) == ("1" in target)

Complexity

Measure	Complexity
Time	O(n), where n is the length of the string
Space	O(1) auxiliary

Pattern: Bit Manipulation

Use XOR, masks and the low-bit trick to replace whole data structures with an integer. LeetCode 2546. Apply Bitwise Operations to Make Strings Equal is filed here on both counts: the reference solution below belongs to the algorithm family this hub collects, and LeetCode tags it Bit Manipulation.

The bit manipulation guide has the Python template for the pattern and the 194 LeetCode problems that use it.

Frequently asked questions

How hard is LeetCode 2546. Apply Bitwise Operations to Make Strings Equal?: LeetCode 2546. Apply Bitwise Operations to Make Strings Equal is rated Medium on LeetCode.
What is the time complexity of LeetCode 2546. Apply Bitwise Operations to Make Strings Equal?: The Python solution on this page runs in O(n), where n is the length of the string.
What is the space complexity of LeetCode 2546. Apply Bitwise Operations to Make Strings Equal?: The Python solution on this page uses O(1) auxiliary space.
What topics does LeetCode 2546. Apply Bitwise Operations to Make Strings Equal cover?: LeetCode 2546. Apply Bitwise Operations to Make Strings Equal is tagged Bit Manipulation and String on LeetCode.