Add beautiful code :)

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

main.cpp

@@ -1,6 +1,63 @@
 #include <iostream>
+#include <vector>
+#include <bits/stdc++.h>
+
+using std::cout;
+using std::endl;
+using std::cin;
+using std::vector;
+using std::string;
 
 int main() {
-    std::cout << "Hello, World!" << std::endl;
+    vector<int> x;
+
+    string line;
+    int number;
+    bool vectorEnd = false;
+
+    int min, max;
+
+    // Prendo in input il vettore x
+    cout << "Inserisci gli elementi di X, un numero per riga." << endl
+         << "Per terminare l'inserimento inserire una riga vuota o non valida." << endl;
+    while (!vectorEnd) {
+        cout << "> ";
+        getline(cin, line);
+        try {
+            number = std::stoi(line);
+            x.push_back(number);
+        } catch (std::exception ex) {
+            vectorEnd = true;
+        }
+    }
+
+    // Prendo in input min e max
+    cout << "Min = ";
+    cin >> min;
+    cout << "Max = ";
+    cin >> max;
+
+
+    if (max > min) {    // Verifico input
+        std::sort(x.begin(), x.end());
+
+        int i = min;
+
+        while (!x.empty()) {
+            for (; i < x[0]; i++) {
+                cout << i << endl;
+            }
+            x.erase(x.begin());
+            i++;
+        }
+
+        for (; i <= max; i++) {
+            cout << i << endl;
+        }
+    } else {
+        cout << "Input non valido." << endl;
+    }
+
+
     return 0;
 }