How can I optimize the two-sum problem in coding?
An example of an AI chatbot conversation about optimizing the two-sum problem in coding.
How can I optimize the two-sum problem in coding?
To optimize the two-sum problem, you can use a hash map to store the numbers and their indices.
Can you explain how the hash map approach works?
Sure! You iterate through the array, and for each number, you check if the complement (target - number) exists in the hash map.
What is the time complexity of this approach?
The time complexity is O(n) because you only need to traverse the array once.
Are there any other methods to solve this problem?
Yes, you can also use a brute force approach, but it has a time complexity of O(n^2). The hash map method is more efficient.
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