huffman set frequency Priorities

huffman/huffman.c

@@ -265,7 +265,13 @@ int main(int argc, char *argv[]) {
             }
             printf("\n");
         }
-        free(refs);
+        for (int i = 0; i < 256 - 1; i++){  // set frequencyPriorities from sorted refs
+            // FIXME nodes with the exact same frequency should have the same priority.
+            // frequenciesPrority: lower is more frequent.
+            nodes[refs[i]].frequencyPriority = i;
+        }
+        // TODO rename refs array and keep until actually no longer needed.
+        //free(refs);
         // TODO build tree using Heaps
 
         // TODO write Tree and compression to file