did it in c++

1/puzzle1.cpp

@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <list>
+#include <iostream>
+#include <fstream>
+
+using namespace std;
+
+list<int> listOne{};
+list<int> listTwo{};
+
+int totalDistance = 0;
+
+int main(){
+
+    ifstream puzzle("input.txt");
+
+    int tempOne, tempTwo;
+
+    while (puzzle >> tempOne >> tempTwo)
+    {
+        listOne.push_back(tempOne);
+        listTwo.push_back(tempTwo);
+    }
+
+    puzzle.close();
+
+    listOne.sort();
+    listTwo.sort();
+
+    for (int x=0; !listOne.empty();x++){
+        totalDistance += listOne.front() + listTwo.front();
+        listOne.pop_front();
+        listTwo.pop_front();
+    }
+
+    printf("total distance: %i\n", totalDistance);
+}