/*
[@Github _ Sologala](https://github.com/Sologala/LeetCode.git)
[`989`]**数组形式的整数加法**|**add-to-array-form-of-integer**
*/
## **Solution**
将`K`转换成为`vector` 然后逐位相加。
```c
vector tovector(int n){
string t = to_string(n);
vector ret;
for(auto c : t)
ret.push_back(c -'0');
return ret;
}
```
### **ac_code**
```c
class Solution {
public:
vector to
