···

       
13
       
13
       
 
       
      |> list.fold(#(0, bank), fn(acc, i) {

     

       
14
       
14
       
 
       
        let #(number, bank) = acc

     

       
15
       
15
       
 
       


     

       
16
       
16
       
-
       
        let bank_find =

     

       
16
       
16
       
+
       
        let max =

     

       
17
       
17
       
 
       
          bank

     

       
18
       
18
       
 
       
          |> list.reverse

     

       
19
       
19
       
 
       
          |> list.drop(i)

     

       
20
       
20
       
 
       
          |> list.reverse

     

       
21
       
21
       
-
       


     

       
22
       
22
       
-
       
        let max =

     

       
23
       
23
       
-
       
          bank_find

     

       
24
       
21
       
 
       
          |> list.max(int.compare)

     

       
25
       
22
       
 
       
          |> result.unwrap(

     

       
26
       
23
       
 
       
            bank |> list.reverse |> list.first |> result.unwrap(0),