Add solution for day-01 part one

2024/day-01/main.cpp

@@ -1,9 +1,44 @@
+#include <fstream>
 #include <iostream>
+#include <vector>
 
 using namespace std;
 
+void sort(vector<int> &list)
+{
+    for (size_t i = 0; i < list.size() - 1; i++) {
+        for (size_t j = i + 1; j < list.size(); j++) {
+            if (list[i] > list[j]) {
+                int temp = list[i];
+                list[i] = list[j];
+                list[j] = temp;
+            }
+        }
+    }
+}
+
 int main()
 {
-    cout << "Hello World!" << endl;
-    return 0;
+    vector<int> list1, list2;
+
+    {
+        ifstream inputFile("input");
+        string line;
+        while (getline(inputFile, line)) {
+            list1.push_back(stoi(line.substr(0, 5)));
+            list2.push_back(stoi(line.substr(8, 5)));
+        }
+    }
+
+    sort(list1);
+    sort(list2);
+
+    int totalDistance = 0;
+
+    for (size_t i = 0; i < list1.size(); i++) {
+        int distance = list1[i] - list2[i];
+        totalDistance += (distance >= 0) ? distance : -distance;
+    }
+
+    cout << "Total distance between the lists: " << totalDistance << endl;
 }