Account code tree

Create a method that given the input generates the output.

# Input

/a/b/c
/a/x
/a/b/d
/a/b/c/c1

# Output

A data structure representing the logical tree

 a
 / \
 b x
 /\
 d c
    \
    c1
    
    {
        a: {
            id: a
            childIds: [b, x]
        },
        b: {
            id: b,
            childIds: [c, d]
        }
        
    }

function createTree(string) {
const tree = {};

}