Merge pull request scipopt#380 from lascavana/master

add leaf counters

src/pyscipopt/scip.pxd

@@ -1198,6 +1198,8 @@ cdef extern from "scip/scip.h":
     # Statistic Methods
     SCIP_RETCODE SCIPprintStatistics(SCIP* scip, FILE* outfile)
     SCIP_Longint SCIPgetNNodes(SCIP* scip)
+    SCIP_Longint SCIPgetNFeasibleLeaves(SCIP* scip)
+    SCIP_Longint SCIPgetNInfeasibleLeaves(SCIP* scip)
     SCIP_Longint SCIPgetNLPs(SCIP* scip)
     SCIP_Longint SCIPgetNLPIterations(SCIP* scip)
 
@@ -1651,6 +1653,9 @@ cdef extern from "scip/pub_lp.h":
 
 cdef extern from "scip/scip_tree.h":
     SCIP_RETCODE SCIPgetOpenNodesData(SCIP* scip, SCIP_NODE*** leaves, SCIP_NODE*** children, SCIP_NODE*** siblings, int* nleaves, int* nchildren, int* nsiblings)
+    SCIP_Longint SCIPgetNLeaves(SCIP* scip)
+    SCIP_Longint SCIPgetNChildren(SCIP* scip)
+    SCIP_Longint SCIPgetNSiblings(SCIP* scip)
 
 cdef extern from "scip/scip_var.h":
     SCIP_RETCODE SCIPchgVarBranchPriority(SCIP* scip, SCIP_VAR* var, int branchpriority)

src/pyscipopt/scip.pyx

@@ -1073,6 +1073,26 @@ cdef class Model:
         """Retrieve the total number of processed nodes."""
         return SCIPgetNNodes(self._scip)
 
+    def getNFeasibleLeaves(self):
+        """Retrieve number of leaf nodes processed with feasible relaxation solution."""
+        return SCIPgetNFeasibleLeaves(self._scip)
+
+    def getNInfeasibleLeaves(self):
+        """gets number of infeasible leaf nodes processed."""
+        return SCIPgetNInfeasibleLeaves(self._scip)
+
+    def getNLeaves(self):
+        """gets number of leaves in the tree."""
+        return SCIPgetNLeaves(self._scip)
+
+    def getNChildren(self):
+        """gets number of children of focus node."""
+        return SCIPgetNChildren(self._scip)
+
+    def getNSiblings(self):
+        """gets number of siblings of focus node."""
+        return SCIPgetNSiblings(self._scip)
+
     def getCurrentNode(self):
         """Retrieve current node."""
         return Node.create(SCIPgetCurrentNode(self._scip))