Changeset - r460:81d40f1c850c
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deba@inf.elte.hu
deba@inf.elte.hu
Bug fix in heap unionfind (ticket #197) The previous bugfix set the minimum value in internal nodes wrongly. It corrects the problem.
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1 file changed with 4 insertions and 7 deletions:
lemon/unionfind.h
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7
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lemon/unionfind.h
Show white space 12 line context
... ... 
@@ -1174,13 +1174,14 @@
1174 1174 
            deleteNode(jd);
1175 1175 
            jd = kd;
1176 1176 
          } else {
1177 1177 
            int pd = nodes[jd].parent;
1178 1178 
            if (nodes[nodes[jd].next].size < cmax) {
1179 1179 
              pushLeft(nodes[jd].next, nodes[jd].left);
1180 
              if (nodes[jd].item == nodes[pd].item) {
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              if (less(jd, nodes[jd].next) ||
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                  nodes[jd].item == nodes[pd].item) {
1181 1182 
                nodes[nodes[jd].next].prio = nodes[jd].prio;
1182 1183 
                nodes[nodes[jd].next].item = nodes[jd].item;
1183 1184 
              }
1184 1185 
              popLeft(pd);
1185 1186 
              deleteNode(jd);
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              jd = pd;
... ... 
@@ -1217,13 +1218,14 @@
1217 1218 
            deleteNode(jd);
1218 1219 
            jd = kd;
1219 1220 
          } else {
1220 1221 
            int pd = nodes[jd].parent;
1221 1222 
            if (nodes[nodes[jd].prev].size < cmax) {
1222 1223 
              pushRight(nodes[jd].prev, nodes[jd].right);
1223 
              if (nodes[jd].item == nodes[pd].item) {
1224 
              if (less(jd, nodes[jd].prev) ||
1225 
                  nodes[jd].item == nodes[pd].item) {
1224 1226 
                nodes[nodes[jd].prev].prio = nodes[jd].prio;
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                nodes[nodes[jd].prev].item = nodes[jd].item;
1226 1228 
              }
1227 1229 
              popRight(pd);
1228 1230 
              deleteNode(jd);
1229 1231 
              jd = pd;
... ... 
@@ -1250,17 +1252,12 @@
1250 1252 

			




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    bool less(int id, int jd) const {


			




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      return comp(nodes[id].prio, nodes[jd].prio);


			




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    }


			




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    bool equal(int id, int jd) const {


			




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      return !less(id, jd) && !less(jd, id);


			




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    }


			




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  public:


			




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    /// \brief Returns true when the given class is alive.


			




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    ///


			




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    /// Returns true when the given class is alive, ie. the class is


			




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    /// not nested into other class.


			




        

    






    
    



    


    

     
    
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