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Questions and Answers
What is the time complexity of the given approach?
What is the time complexity of the given approach?
- O(m log m + n log n)
- O(m + n)
- O(m * log n)
- O(m * n) (correct)
What is the space complexity of the given approach?
What is the space complexity of the given approach?
- O(1)
- O(max(m, n))
- O(m * n)
- O(m + n) (correct)
What is the purpose of the 'if' condition in the forEach loop?
What is the purpose of the 'if' condition in the forEach loop?
- To check if the element is present in arr2
- To check if the element is present in arr1
- To check if the element is present in either of the arrays
- To check if the element is present in both arrays and is unique (correct)
Given two arrays, find the intersection(items occur in both arrays)
arrays are not sorted, and might have duplicates.
you can modify the arrays
you can return the items in any order, but without duplicates.
This is an easy problem, What is the time & space complexity of your approach?
Given two arrays, find the intersection(items occur in both arrays)
arrays are not sorted, and might have duplicates. you can modify the arrays you can return the items in any order, but without duplicates. This is an easy problem, What is the time & space complexity of your approach?
What does 'brute force' refer to in the context of algorithms?
What does 'brute force' refer to in the context of algorithms?
Why may brute force algorithms not be the most efficient for large-scale or complex problems?
Why may brute force algorithms not be the most efficient for large-scale or complex problems?
What is a characteristic of brute force algorithms?
What is a characteristic of brute force algorithms?
Why is sorting used in the findIntersection function?
Why is sorting used in the findIntersection function?
What is the purpose of the two-pointer approach in the findIntersection function?
What is the purpose of the two-pointer approach in the findIntersection function?
What happens if the input arrays arr1 and arr2 are not sorted in the findIntersection function?
What happens if the input arrays arr1 and arr2 are not sorted in the findIntersection function?
What is the significance of using the comparison function (a, b) => a - b in the sort method?
What is the significance of using the comparison function (a, b) => a - b in the sort method?
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