# HG changeset patch
# User deba
# Date 1195669160 0
# Node ID 6148e83636b91c18473a6722ca15824e4a8b1056
# Parent  a7376f7ed8991a315a1f2becec645d6167dfe433
Better solution

diff -r a7376f7ed899 -r 6148e83636b9 lemon/elevator.h
--- a/lemon/elevator.h	Wed Nov 21 13:35:10 2007 +0000
+++ b/lemon/elevator.h	Wed Nov 21 18:19:20 2007 +0000
@@ -383,11 +383,12 @@
     ///Mark the node as it did not reach the max level
     
     ///Mark the node as it did not reach the max level. It sets the
-    ///level of the node to a low value, which is not connected to the
-    ///real levels of elevator. The node should be lifted previously
-    ///to the top level.
+    ///level to the under the max level value. The node will be never
+    ///more activated because the push operation from the maximum
+    ///level is forbidden in the push-relabel algorithms. The node
+    ///should be lifted previously to the top level.
     void markToBottom(Item i) {
-      _level[i] = - _max_level;
+      _level[i] = _max_level - 1;
     }
     
     ///Lift all nodes on and above a level to the top (and deactivate them).
@@ -899,11 +900,12 @@
     ///Mark the node as it did not reach the max level
     
     ///Mark the node as it did not reach the max level. It sets the
-    ///level of the node to a low value, which is not connected to the
-    ///real levels of elevator. The node should be lifted previously
-    ///to the top level.
+    ///level to the under the max level value. The node will be never
+    ///more activated because the push operation from the maximum
+    ///level is forbidden in the push-relabel algorithms. The node
+    ///should be lifted previously to the top level.
     void markToBottom(Item i) {
-      _level[i] = - _max_level;
+      _level[i] = _max_level - 1;
     }
 
     ///Lift all nodes on and above a level to the top (and deactivate them).