1558. Minimum Numbers of Function Calls to Make Target Array
Medium
576
29

You are given an integer array `nums`. You have an integer array `arr` of the same length with all values set to `0` initially. You also have the following `modify` function:

You want to use the modify function to convert `arr` to `nums` using the minimum number of calls.

Return the minimum number of function calls to make `nums` from `arr`.

The test cases are generated so that the answer fits in a 32-bit signed integer.

Example 1:

```Input: nums = [1,5]
Output: 5
Explanation: Increment by 1 (second element): [0, 0] to get [0, 1] (1 operation).
Double all the elements: [0, 1] -> [0, 2] -> [0, 4] (2 operations).
Increment by 1 (both elements)  [0, 4] -> [1, 4] -> [1, 5] (2 operations).
Total of operations: 1 + 2 + 2 = 5.
```

Example 2:

```Input: nums = [2,2]
Output: 3
Explanation: Increment by 1 (both elements) [0, 0] -> [0, 1] -> [1, 1] (2 operations).
Double all the elements: [1, 1] -> [2, 2] (1 operation).
Total of operations: 2 + 1 = 3.
```

Example 3:

```Input: nums = [4,2,5]
Output: 6
Explanation: (initial)[0,0,0] -> [1,0,0] -> [1,0,1] -> [2,0,2] -> [2,1,2] -> [4,2,4] -> [4,2,5](nums).
```

Constraints:

• `1 <= nums.length <= 105`
• `0 <= nums[i] <= 109`
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