Move c++ solutions into separate directory

2024/cpp/day-01/day-01.pro

@@ -0,0 +1,7 @@
+TEMPLATE = app
+CONFIG += console c++17
+CONFIG -= app_bundle
+CONFIG -= qt
+
+SOURCES += \
+        main.cpp

2024/cpp/day-01/main.cpp

@@ -0,0 +1,59 @@
+#include <algorithm>
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+void readInput(vector<int> &list1, vector<int> &list2)
+{
+    int value1, value2;
+    while (cin >> value1 >> value2) {
+        list1.push_back(value1);
+        list2.push_back(value2);
+    }
+}
+
+void sortLists(vector<int> &list1, vector<int> &list2)
+{
+    sort(list1.begin(), list1.end());
+    sort(list2.begin(), list2.end());
+}
+
+int calculateTotalDistance(const vector<int> &list1, const vector<int> &list2)
+{
+    int totalDistance = 0;
+    for (size_t i = 0; i < list1.size(); i++) {
+        totalDistance += abs(list1[i] - list2[i]);
+    }
+    return totalDistance;
+}
+
+int calculateSimilarityScore(const vector<int> &list1, const vector<int> &list2)
+{
+    int similarityScore = 0;
+    size_t index2 = 0;
+    for (size_t index1 = 0; index1 < list1.size(); index1++) {
+        while ((index2 < list2.size()) && (list1[index1] > list2[index2])) {
+            index2++;
+        }
+        while ((index2 < list2.size()) && (list1[index1] == list2[index2])) {
+            similarityScore += list2[index2];
+            index2++;
+        }
+    }
+    return similarityScore;
+}
+
+int main()
+{
+    vector<int> list1, list2;
+    readInput(list1, list2);
+
+    sortLists(list1, list2);
+
+    // Part one
+    cout << "Total distance between the lists: " << calculateTotalDistance(list1, list2) << endl;
+
+    // Part two
+    cout << "Similarity Score: " << calculateSimilarityScore(list1, list2) << endl;
+}