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Hello

I have just learnt recursion & I thought I would try & alter some of my previous funtions to make them recursive, well the 1st function I try to alter totally stumps me & I thought I understood recursion :P

Is it possible to make this function recursive?

```
int findSum (vector < int > v)
{
int sum = 0
for (int i=0; i<v.size(); i++) {
sum += v.at(i);
}
return sum;
}
```

I am trying to get the function to find and return the sum of all elements in a vector