Maximum triangle path sum: Difference between revisions

Content added Content deleted

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@@ Line 985: / Line 985: @@
 fold_row([], L) -> L;
-fold_row([A|_] = Last, [B|_] = Current) ->
+fold_row([A|_] = Last, [B|Bs]) ->
-    [A+B | fold_rest(Last, tl(Current))].
+    [A+B | fold_rest(Last, Bs)].
 fold_rest([A], [B]) -> [A+B];
-fold_rest([A1,A2|_] = Prev, [B|Bs]) -> [B + max(A1,A2) | fold_rest(tl(Prev), Bs)].
+fold_rest([A1 | [A2|_] = As], [B|Bs]) -> [B + max(A1,A2) | fold_rest(As, Bs)].
 </lang>
 {{Out}}