2695. Array Wrapper
Description
Create a class ArrayWrapper
that accepts an array of integers in its constructor. This class should have two features:
- When two instances of this class are added together with the
+
operator, the resulting value is the sum of all the elements in both arrays. - When the
String()
function is called on the instance, it will return a comma separated string surrounded by brackets. For example,[1,2,3]
.
Example 1:
Input: nums = [[1,2],[3,4]], operation = "Add" Output: 10 Explanation: const obj1 = new ArrayWrapper([1,2]); const obj2 = new ArrayWrapper([3,4]); obj1 + obj2; // 10
Example 2:
Input: nums = [[23,98,42,70]], operation = "String" Output: "[23,98,42,70]" Explanation: const obj = new ArrayWrapper([23,98,42,70]); String(obj); // "[23,98,42,70]"
Example 3:
Input: nums = [[],[]], operation = "Add" Output: 0 Explanation: const obj1 = new ArrayWrapper([]); const obj2 = new ArrayWrapper([]); obj1 + obj2; // 0
Constraints:
0 <= nums.length <= 1000
0 <= nums[i] <= 1000
Note: nums is the array passed to the constructor
Solutions
Solution 1
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