add_array

Adding one to an array def add_array(arr): if arr == [9] * len(arr): arr1 = [1] for i in range(len(arr)): arr1.append(i * 0) return arr1 else: for i in range(len(arr) - 1, -1, -1): if arr[i] != 9: arr[i] = arr[i] + 1 break if arr[i] == 9: arr[i] = 0 i -= 1

return arr

arr = [1,2,3,4]

arr = [1,2,3,9]

arr = [1,2,9,9]

arr = [9, 9, 9, 9] result = add_array(arr) print(result)