Practice Array Wrapper
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Array Wrapper
ArrayWrapper stores an integer array supplied to its constructor. Adding two instances with + must yield the sum of all elements in both stored arrays. Converting an instance with String() must produce its elements separated by commas and enclosed in square brackets, with no extra spaces, such as [1,2,3].
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Understanding the Array Wrapper Problem
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Problem Statement
ArrayWrapper stores an integer array supplied to its constructor. Adding two instances with + must yield the sum of all elements in both stored arrays. Converting an instance with String() must produce its elements separated by commas and enclosed in square brackets, with no extra spaces, such as [1,2,3].
Source: Array Wrapper on LeetCode. Use the original task for its coding environment and submissions.
Array Wrapper
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Examples
# Example 1
nums = [[1,2],[3,4]], operation = "Add"
10
# Example 2
nums = [[23,98,42,70]], operation = "String"
"[23,98,42,70]"
# Example 3
nums = [[],[]], operation = "Add"
0
Constraints
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