Answers for day 3

03/p2_solution.cpp

@@ -0,0 +1,62 @@
+#include <iostream>
+#include <fstream>
+#include <map>
+#include <vector>
+#include <algorithm>
+using namespace std;
+
+
+int intoPriority(char ch)
+{
+    int initalP = ch;
+    if (initalP < 97)
+    {
+        initalP -= 38;
+    } else {initalP -= 96;}
+    return initalP;
+}
+
+
+int main()
+{
+    string inputStr;
+    ifstream inputFile("input.txt");
+
+    int i {0};
+    // This will be reset every 3 lines
+    map<char,int> itemCounts;
+    int badgePrioity {0};
+    while (getline(inputFile, inputStr))
+    {
+        i++;
+        // These are the items we've seen this line
+        vector<char> seenVec;
+        // Increment the item counter for each item not already seen in this line
+        for (char c: inputStr)
+        {
+            // Check that we haven't already seen this char
+            if (find(seenVec.begin(), seenVec.end(), c) != seenVec.end()) {continue;}
+            seenVec.push_back(c);
+            itemCounts[c]++;
+        }
+
+        // If this is the 3rd line we need to check for the badge and reset itemCounts
+        if (i%3==0)
+        {
+            map<char, int>::iterator itr;
+            // Look through the map for something that occured three times
+            for (itr = itemCounts.begin(); itr != itemCounts.end(); itr++)
+            {
+                if (itr->second == 3)
+                {
+                    // Add that items value to our total
+                    badgePrioity += intoPriority(itr->first);
+                }
+            }
+            // Erase everything in the count map as we're now in a new group
+            itemCounts.clear();
+        }
+    }
+    cout << badgePrioity << endl;
+
+}

03/solution.cpp

@@ -14,29 +14,6 @@ int intoPriority(char ch)
     return initalP;
 }
 
-class CharCount
-{
-    char key;
-    int count;
-};
-
-
-class CharCounter
-{
-    vector<CharCount> cc;
-
-public:
-    int insert(char ch)
-    {
-        // This is terrible, DO NOT COMMIT
-        for (int i {0}; i < 26; i++)
-        {
-            CharCount charCount = this.cc[i];
-        }
-    }
-};
-
-
 
 class RuckSack
 {
@@ -89,19 +66,9 @@ int main()
     int groupPrioritySum {0};
 
 
-
-    set<BTreeNode> groupBTree; 
-    int i {0};
     while (getline(inputFile, inputStr))
-    {
-        i++;
-        if (i % 3 == 0)
-            set<BTreeNode> groupBTree;
-        
-        for (char c : inputStr)
     {
         
-        }
         RuckSack curRuckSack {RuckSack(inputStr)};
         cout << curRuckSack.aString() << "\t\t\t" << curRuckSack.bString() << endl;