Finished implementation of problem 1.

.gitignore

@@ -1,7 +1,13 @@
 /hw1/hw1pr1/*.o
+/hw1/hw1pr1/main
 /hw1/hw1pr2/*.o
+/hw1/hw1pr2/main
 /hw1/hw1pr3/*.o
+/hw1/hw1pr3/main
 
 /hw2/hw2pr1/*.o
+/hw1/hw2pr1/main
 /hw2/hw2pr2/*.o
+/hw1/hw2pr2/main
 /hw2/hw2pr3/*.o
+/hw1/hw2pr3/main

hw2/hw2pr1/.hw2pr1_data.txt

@@ -0,0 +1 @@
+((3,12,8),(2,4,6),(14,5,2))

hw2/hw2pr1/hw2pr1.cpp

@@ -7,36 +7,147 @@
 #include <iostream>
 #include <fstream>
 #include <math.h>
+#include <limits.h>
+#include <tuple>
 #include "node.h"
 
 using namespace std;
 
-node makeTree(string input, node n, int level)
+// Perform min/max on this tree.
+void minmax(node *n)
 {
-    char tempc = input[0];
-    input = input.substr(1);
+    if(n->getLevel() % 2 == 0)
+    {
+        int max = n->getValue();
+        if(n->getChildren().size() > 0)
+        {
+            for(int c = 0; c < n->getChildren().size(); c++)
+            {
+                minmax(n->getChildAt(c));
 
-    if(tempc == '(')
+                if(n->getChildAt(c)->getValue() > max)
                 {
+                    max = n->getChildAt(c)->getValue();
                 }
+            }
+        }
+        n->setValue(max);
+        cout << n->getValue() << endl;
+    }
+
+    else
+    {
+        int min = n->getValue();
+        if(n->getChildren().size() > 0)
+        {
+            for(int c = 0; c < n->getChildren().size(); c++)
+            {
+                minmax(n->getChildAt(c));
+                
+                if(n->getChildAt(c)->getValue() < min)
+                {
+                    min = n->getChildAt(c)->getValue();
+                }
+            }
+        }
+        n->setValue(min);
+        cout << n->getValue() << endl;
+    }
+}
+
+// This is mostly just a simple debug function so I can see
+// if my tree is being formed properly.
+void printTree(node n)
+{
+    cout << n.getValue() << " " << n.getLevel() << " ";
+    if(n.getChildren().size() != 0)
+    {
+        cout << "\n|\n";
+        for(node c : n.getChildren())
+        {
+            printTree(c);
+        }
+        cout << endl;
+    }
+}
+
+tuple<node, string> makeTree(string input, node n, int level)
+{
+    char tempc;
+    string tempn = "";
 
     while(input.length() != 0)
     {
-        // If the char is a digit.
-        if(tempc)
+        tempc = input[0];
+        if(input.length() > 0)
         {
+            input = input.substr(1);
+        }
+        else
+        {
+            input = "";
+        }
+
+        cout << "testing" << endl;
+        // If the char is a number.
+        if(isdigit(tempc))
+        {
+            tempn += tempc;
         }
         
         // If the char is a comma.
         else if(tempc == ',')
         {
+            if(tempn.length() > 0)
+            {
+                node tempnode;
+                tempnode.setLevel(level);
+                tempnode.setValue(stoi(tempn));
+                tempnode.setParent(&n);
+                n.addChild(tempnode);
+                tempn = "";
+            }
         }
 
         // If the char is a close paranthesis.
         else if(tempc == ')')
         {
+            if(tempn.length() > 0)
+            {
+                node tempnode;
+                tempnode.setLevel(level);
+                tempnode.setValue(stoi(tempn));
+                tempnode.setParent(&n);
+                n.addChild(tempnode);
+                tempn = "";
+            }
+            tuple<node, string> tempt(n, input);
+            return tempt;
+        }
+
+        // If the char is an open paranthesis.
+        else if(tempc == '(')
+        {
+            node tempnode;
+            tempnode.setLevel(level);
+            if(level % 2 == 0)
+            {
+                tempnode.setValue(INT_MIN);
+            }
+            else
+            {
+                tempnode.setValue(INT_MAX);
+            }
+            tempnode.setParent(&n);
+            tuple<node, string> tempt = makeTree(input, tempnode, level + 1);
+            tempnode = get<0>(tempt);
+            input = get<1>(tempt);
+            n.addChild(tempnode);
         }
     }
+
+    tuple<node, string> output(n, input);
+    return output;
 }
 
 int main(int argc, char **argv)
@@ -74,6 +185,16 @@ int main(int argc, char **argv)
         cin >> input;
     }
 
-    cout << input << endl;
+    node root;
+    root.setLevel(0);
+    root.setValue(INT_MIN);
+    tuple<node, string> tree;
+    tree = makeTree(input.substr(1), root, 1);
+    root = get<0>(tree);
+
+    minmax(&root);
+
+    printTree(root);
+
     return 0;
 }

hw2/hw2pr1/hw2pr1_data.txt

@@ -1 +1 @@
-((3,12,8),(2,4,6),(14,5,2))
+((3,8,(7,(3,0,7),(8,8,2))),(4,(7,9,8),8),(((3,6,4),2,6),((9,2,9),4,7,(6,4,5)),4,(6,4,5)))

hw2/hw2pr1/makefile

@@ -1,5 +1,13 @@
-all: main.o
-main.o: hw2pr1.cpp
-	g++ -std=c++17 hw2pr1.cpp -o hw2pr1.o
+all: main
+
+main: hw2pr1.o node.o
+	g++ -std=c++17 hw2pr1.o node.o -o main
+
+hw2pr1.o: hw2pr1.cpp
+	g++ -std=c++17 -c hw2pr1.cpp
+
+node.o: node.cpp node.h
+	g++ -std=c++17 -c node.cpp
+
 clean:
-	rm -rf *.o
+	rm -rf *.o *.gch main

hw2/hw2pr1/node.cpp

@@ -0,0 +1,19 @@
+#include "node.h"
+
+using namespace std;
+    
+node::node()
+{
+    parent = NULL;
+    level = 0;
+    value = 0;
+}
+
+node::node(node* n)
+{
+    parent = n->getParent();
+    level = n->getLevel();
+    value = n->getValue();
+    children = n->getChildren();
+}
+

hw2/hw2pr1/node.h

@@ -10,16 +10,21 @@ class node
     private:
         node* parent;
         int level;
+        int value;
         vector<node> children;
     public:
+        node();
+        node(node *n);
         void setParent(node* p) { parent = p; };
         node* getParent() { return parent; };
         void setLevel(int l) { level = l; };
         int getLevel() { return level; };
+        void setValue(int v) { value = v; };
+        int getValue() { return value; };
         void setChildren(vector<node> c) { children = c; };
         void addChild(node n) { children.push_back(n); };
         vector<node> getChildren() { return children; };
-        node getChildrenAt(int i) { return children.at(i); };
+        node* getChildAt(int i) { return &children.at(i); };
 };
 
 #endif