Update examples/finished/nodesel_hybridestim.py

Co-authored-by: João Dionísio <57299939+Joao-Dionisio@users.noreply.github.com>

Author: mmghannam

examples/finished/nodesel_hybridestim.py

@@ -101,7 +101,7 @@ def nodeselect(self):
  lowerbound = self.scip.getLowerbound()
  cutoffbound = self.scip.getCutoffbound()
 
- # If we didn't find a solution yet, use only 20% of the gap as cutoff bound
+ # If we didn't find a solution yet, tighten the cutoff bound to 20% of the range between it and the lowerbound.
  if self.scip.getNSols() == 0:
  cutoffbound = lowerbound + 0.2 * (cutoffbound - lowerbound)