fixed snake pathfinding

uil/october-2013/3/input-generator/main.py

@@ -7,12 +7,16 @@ class Node(object):
         self.g, self.h, self.f = 0, 0, 0
 
     def __eq__(self, other):
-        assert type(other) == Node, "Can only compare equality against other Node objects"
+        assert type(other) == Node, "Node cannot compared against type \"{}\"".format(str(type(other)))
         return self.position == other.position
 
     def __repr__(self):
         return f'<Node ({self.position[0]}, {self.position[1]})>'
     
+    @classmethod
+    def positionify(self, nodes):
+        return [node.position for node in nodes]
+
 # Generate a grid and return it to the user
 class SnakeGrid(object):
     def __init__(self, x, y, length=3):
@@ -81,6 +85,7 @@ class SnakeGrid(object):
     def bestPellet(self, curpos, blacklist=[]):
         potential = self.pellets()
         if blacklist:
+            print(curpos, blacklist)
             potential = list(filter(lambda item : item not in blacklist, potential))
             # Returns None if no potential pellets are in due to blacklist
             if not potential:
@@ -91,15 +96,22 @@ class SnakeGrid(object):
     def merge(self, pos1, pos2):
         return [pos1[0] + pos2[0], pos1[1] + pos2[1]]
 
+    def solution(self, maxdist=20):
+        path = self.generateSolutions()
+        for i, pos in enumerate(path):
+            if self.available(pos):
+                self.mark(pos, str(i + 1))
+        return path
+
     # Generater a solution for the maz
-    def solution(self, length=20):
+    def generateSolutions(self, maxdist=30):
         def build_path(current_node):
             path = []
             current = current_node
             while current is not None:
                 path.append(current.position)
                 current = current.parent
-            return str(path[::-1])
+            return path[::-1]
 
         # Pathfinding initial constants
         start_node = Node(None, self.positions[-1])
@@ -110,7 +122,7 @@ class SnakeGrid(object):
         output = ""
 
         while len(open_list) > 0:
-            self.sleep(0.125)
+            # self.sleep(0.125)
             pathdist += 1
             # Choose the best node to work on
             current_index, current_node = min(enumerate(open_list), key=lambda item : item[1].f)
@@ -119,16 +131,21 @@ class SnakeGrid(object):
 
 
             # Check if we've hit the maximum distance
-            if pathdist >= length:
+            if pathdist >= maxdist:
                 return build_path(current_node)
 
             # If we've hit the "end node", but still distance to travel, setup a new one
             if current_node == end_node: 
                 finished_end_nodes.append(end_node)
-                end_node = self.bestPellet(blacklist=finished_end_nodes)
+                start_node = end_node
+                open_list = [start_node]
+                closed_list.append(end_node)
+                end_node = position=self.bestPellet(current_node.position, blacklist=Node.positionify(finished_end_nodes))
                 # if we've acquired all pellets by chance
                 if end_node is None:
                     return build_path(current_node)
+                else:
+                    end_node = Node(parent=None, position=end_node)
 
             # Basically iterates upon all positions next to the current node dependent on the cardinal directions
             for offset in self.offsets:
@@ -137,18 +154,16 @@ class SnakeGrid(object):
                 if self.inBounds(child):
                     child = Node(parent=current_node, position=child)
                     
+                    if child in closed_list:
+                        continue
+
                     # Ensure not already a closed position
-                    if not child in closed_list:
                     child.g = current_node.g + 1
                     child.h = self.distance(child.position, end_node.position)
                     child.f = child.g + child.h
                     
                     # Ensure that child node is
-                    for open_node in open_list:
+                    if child not in open_list:
-                        if child == open_node:
-                            if child.g > open_node.g:
-                                continue
-                    
                         open_list.append(child)
     
         return output
@@ -170,7 +185,8 @@ class SnakeGrid(object):
         return (self.matrix[pos[0]][pos[1]] == look) if self.inBounds(pos) else False
 
     def __repr__(self):
-        return '\n'.join(' - '.join(_) for _ in self.matrix)
+        length = max([max(len(item) for item in sub) for sub in self.matrix])
+        return '\n'.join(' - '.join(map(lambda item : item.ljust(length) if item != ' ' else (' ' * length), line)) for line in self.matrix)
 
 # Driver Code
 if __name__ == "__main__":
@@ -190,10 +206,11 @@ if __name__ == "__main__":
     # Build and prints matrixes
     for x in range(iterations):
         snakegrid = SnakeGrid(size[0], size[1], 3)
+        solution = snakegrid.solution()
         print(dividerCustom.format(str(x+1).zfill(len(str(iterations)))))
         print(snakegrid)
         print(dividerTotal)
-        print(snakegrid.solution())
+        print(solution)
         time.sleep(timing)
     print(dividerTotal)
 

uil/uil-practice-armstrong/UIL.md

@@ -446,3 +446,5 @@ This is a rather long problem, so let's split it up into parts.
 Class X is a implementation of the Comparable Interface, and is essentially a method for comparing Strings when sorted. Focus on the `compareTo` method.
 
 The `compareTo` method is how comparables "compare", and it returns a integer value to representation how it should be placed in the array. The array is sorted in descending order when `Collections.sort` is called on it.
+
+The integer it returns is calculated based on the length first: if the two Strings have the same length, it returns the result of the two strings `compareTo` method, but if they're not the same length, it returns the difference in length of the two Strings.

uil/uil-practice-armstrong/java/.idea/workspace.xml

@@ -1,7 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ChangeListManager">
-    <list default="true" id="5ee3d13c-335f-4b45-baa5-1d7b6e58ccd6" name="Default Changelist" comment="" />
+    <list default="true" id="5ee3d13c-335f-4b45-baa5-1d7b6e58ccd6" name="Default Changelist" comment="">
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/question26.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/question26.java" afterDir="false" />
+    </list>
     <ignored path="$PROJECT_DIR$/out/" />
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
     <option name="SHOW_DIALOG" value="false" />
@@ -40,16 +43,35 @@
         </counts>
       </usages-collector>
     </session>
+    <session id="-2041611852">
+      <usages-collector id="statistics.lifecycle.project">
+        <counts>
+          <entry key="project.open.time.0" value="1" />
+          <entry key="project.opened" value="1" />
+        </counts>
+      </usages-collector>
+      <usages-collector id="statistics.file.extensions.edit">
+        <counts>
+          <entry key="java" value="461" />
+        </counts>
+      </usages-collector>
+      <usages-collector id="statistics.file.types.edit">
+        <counts>
+          <entry key="JAVA" value="461" />
+        </counts>
+      </usages-collector>
+    </session>
   </component>
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
       <file pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/src/question26.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="221">
+            <state relative-caret-position="533">
-              <caret line="15" column="30" selection-start-line="15" selection-start-column="30" selection-end-line="15" selection-end-column="30" />
+              <caret line="42" column="62" selection-start-line="42" selection-start-column="62" selection-end-line="42" selection-end-column="62" />
               <folding>
                 <element signature="imports" expanded="true" />
+                <element signature="e#435#436#0" expanded="true" />
                 <element signature="e#466#467#0" expanded="true" />
               </folding>
             </state>
@@ -65,6 +87,9 @@
       </list>
     </option>
   </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$/../../.." />
+  </component>
   <component name="GradleLocalSettings">
     <option name="projectSyncType">
       <map>
@@ -87,6 +112,9 @@
     <option name="width" value="1440" />
     <option name="height" value="788" />
   </component>
+  <component name="ProjectLevelVcsManager" settingsEditedManually="true">
+    <ConfirmationsSetting value="2" id="Add" />
+  </component>
   <component name="ProjectView">
     <navigator proportions="" version="1">
       <foldersAlwaysOnTop value="true" />
@@ -108,7 +136,7 @@
     </panes>
   </component>
   <component name="PropertiesComponent">
-    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1568588789665" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1568600612753" />
     <property name="last_opened_file_path" value="$PROJECT_DIR$" />
   </component>
   <component name="RunDashboard">
@@ -152,8 +180,9 @@
   </component>
   <component name="ToolWindowManager">
     <frame x="1912" y="-8" width="1936" height="1066" extended-state="6" />
+    <editor active="true" />
     <layout>
-      <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.18603411" />
+      <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.1881663" />
       <window_info id="Structure" order="1" side_tool="true" weight="0.25" />
       <window_info id="Image Layers" order="2" />
       <window_info id="Designer" order="3" />
@@ -162,7 +191,7 @@
       <window_info id="Favorites" order="6" side_tool="true" />
       <window_info anchor="bottom" id="Message" order="0" />
       <window_info anchor="bottom" id="Find" order="1" />
-      <window_info anchor="bottom" id="Run" order="2" weight="0.2306867" />
+      <window_info active="true" anchor="bottom" id="Run" order="2" visible="true" weight="0.2306867" />
       <window_info anchor="bottom" id="Debug" order="3" weight="0.4" />
       <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
       <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
@@ -170,7 +199,7 @@
       <window_info anchor="bottom" id="Terminal" order="7" />
       <window_info anchor="bottom" id="Event Log" order="8" side_tool="true" />
       <window_info anchor="bottom" id="Version Control" order="9" show_stripe_button="false" />
-      <window_info anchor="bottom" id="Messages" order="10" />
+      <window_info anchor="bottom" id="Messages" order="10" weight="0.32939914" />
       <window_info anchor="right" id="Commander" internal_type="SLIDING" order="0" type="SLIDING" weight="0.4" />
       <window_info anchor="right" id="Ant Build" order="1" weight="0.25" />
       <window_info anchor="right" content_ui="combo" id="Hierarchy" order="2" weight="0.25" />
@@ -187,10 +216,11 @@
   <component name="editorHistoryManager">
     <entry file="file://$PROJECT_DIR$/src/question26.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="221">
+        <state relative-caret-position="533">
-          <caret line="15" column="30" selection-start-line="15" selection-start-column="30" selection-end-line="15" selection-end-column="30" />
+          <caret line="42" column="62" selection-start-line="42" selection-start-column="62" selection-end-line="42" selection-end-column="62" />
           <folding>
             <element signature="imports" expanded="true" />
+            <element signature="e#435#436#0" expanded="true" />
             <element signature="e#466#467#0" expanded="true" />
           </folding>
         </state>

uil/uil-practice-armstrong/java/src/question26.java

@@ -1,5 +1,6 @@
 import static java.lang.System.*;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
  import java.util.List;
 
@@ -16,6 +17,20 @@ class X implements Comparable<X> {
     public String toString() {
         return this.str;
     }
+    public int[] getValues() {
+        int[] values = new int[this.str.length()];
+        for(int i = 0; i < this.str.length(); i++) {
+            values[i] = (int) this.str.charAt(i);
+        }
+        return values;
+    }
+    public int getSum() {
+        int sum = 0;
+        for(int val : this.getValues()) {
+            sum += val;
+        }
+        return sum;
+    }
 }
 
 class question26 {
@@ -26,5 +41,6 @@ class question26 {
             w.add(new X(sub));
         Collections.sort(w);
         out.println(w);
+        out.println(Arrays.toString(new X("Hello").getValues()));
     }
 }