Add to Array-Form of Integer ( LeetCode ) Problem Solution.

Add to Array-Form of Integer ( LeetCode ) Problem Solution.

Example 1:

Input: A = [1,2,0,0], K = 34
Output: [1,2,3,4]
Explanation: 1200 + 34 = 1234

Example 2:

Input: A = [2,7,4], K = 181
Output: [4,5,5]
Explanation: 274 + 181 = 455

Example 3:

Input: A = [2,1,5], K = 806
Output: [1,0,2,1]
Explanation: 215 + 806 = 1021

Example 4:

Input: A = [9,9,9,9,9,9,9,9,9,9], K = 1
Output: [1,0,0,0,0,0,0,0,0,0,0]
Explanation: 9999999999 + 1 = 10000000000

Note：

1. 1 <= A.length <= 10000
2. 0 <= A[i] <= 9
3. 0 <= K <= 10000
4. If A.length > 1, then A[0] != 0

Solution:-

class Solution:

    def addToArrayForm(self, A: List[int], K: int) -> List[int]:

        out=''

        ans=[]

        for i in A:

            out+=str(i)

        out=int(out)+K

        for j in str(out):

            ans.append(int(j))

        return ans

Runtime: 356 ms, faster than 27.97% of Python3 online submissions for Add to Array-Form of Integer.

Memory Usage: 14.8 MB, less than 5.00% of Python3 online submissions for Add to Array-Form of Integer.