diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..0c83701
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,6 @@
+{
+    "files.associations": {
+        "iostream": "cpp",
+        "ostream": "cpp"
+    }
+}
\ No newline at end of file
diff --git a/hf16/2.cpp b/hf16/2.cpp
new file mode 100644
index 0000000..0e94513
--- /dev/null
+++ b/hf16/2.cpp
@@ -0,0 +1,38 @@
+#include <bits/stdc++.h>
+#include <iostream>
+using namespace std;
+
+
+bool tukorSzam(string a) {
+    //ez undorító de nincs jobb ötletem xd
+
+    if (a[0] == a[7]) {
+        if (a[1] == a[6]) {
+            if (a[2] == a[5]) {
+                if (a[3] == a[4]) {
+                    return true;
+                }
+                return false;
+            }
+            return false;
+        }
+        return false;
+    }
+    return false;
+}
+
+int main() {
+    int n;
+    cin>>n;
+    vector<string> telefonszamok(n);
+    for (int i = 0; i < n; i++) {
+        cin >> telefonszamok[i];
+    }
+    cout<<endl;
+    vector<string> out;
+    for (int i = 0; i < telefonszamok.size(); i++) {
+        if (tukorSzam(telefonszamok[i])) {
+            cout<<telefonszamok[i]<<endl;
+        }
+    }
+}
\ No newline at end of file
diff --git a/hf17/1.cpp b/hf17/1.cpp
new file mode 100644
index 0000000..8c48eb7
--- /dev/null
+++ b/hf17/1.cpp
@@ -0,0 +1,42 @@
+#include <bits/stdc++.h>
+#include <iostream>
+using namespace std;
+
+int vectorAverage(vector<int> n){
+    int out;
+    int temp = 0;
+    for (int i = 0; i<n.size(); i++) {
+        temp = n[i] + temp;
+    }
+    out = temp / n.size();
+    return out;
+}
+
+int main() {
+    int n, m, temp, out;
+    temp = 0;
+    cin>>n>>m;
+    vector<vector<int>> nap(m, vector<int> (n));
+    vector<int> temp1(m);
+
+
+    for (int i = 0; i<n; i++) {
+        for (int j = 0; j<m; j++) {
+            cin >> nap[i][j];
+        }
+    }
+
+    for (int i = 0; i<n; i++) {
+        for (int j = 0; j<m; j++) {
+            temp1[j] = nap[i][j];
+        }
+        if (vectorAverage(temp1) > temp) {
+            out = i +1;
+        }
+    }
+    
+
+    cout<<out;
+
+
+}
\ No newline at end of file
diff --git a/hf2/hf3/1.cpp b/hf2/hf3/1.cpp
new file mode 100644
index 0000000..c4e5c5e
--- /dev/null
+++ b/hf2/hf3/1.cpp
@@ -0,0 +1,25 @@
+#include <bits/stdc++.h>
+#include <iostream>
+using namespace std;
+
+int main() {
+    int n, k, temp;
+
+    cin >> n >> k;
+
+    vector<int> gyorsabb;
+
+    for (int i = 0; i < n; i++) {
+        cin >> temp;
+        if (temp < k) {
+            gyorsabb.push_back(i+1);
+        }
+    }
+
+    cout<<gyorsabb.size()<<" ";
+    for (int i = 0; i < gyorsabb.size(); i++) {
+        cout<<gyorsabb[i]<<" ";
+    }
+
+
+}
\ No newline at end of file
diff --git a/hf2/hf3/2.cpp b/hf2/hf3/2.cpp
new file mode 100644
index 0000000..896ac01
--- /dev/null
+++ b/hf2/hf3/2.cpp
@@ -0,0 +1,37 @@
+#include <bits/stdc++.h>
+#include <iostream>
+using namespace std;
+
+int main() {
+    
+    int streak = 0;
+    bool streake = false;
+    string input;
+    vector<char> magan(5);
+    vector<int> out;
+    magan = {'a', 'e', 'i', 'o', 'u'};
+
+    cin >> input;
+
+    for (int i = 0; i < input.size(); i++) {
+        if (input[i] != magan[0] && input[i] != magan[1] && input[i] != magan[2] && input[i] != magan[3] && input[i] != magan[4]) {
+            streak++;
+            streake = true;
+            // cout << "yes" << ' ' << streak << " "<< streake<< ' '<<input[i]<<endl;
+        } else if (streake) {
+            out.push_back(streak);
+            streake = false;
+            streak = 0;
+            // cout << "over"<< endl;
+        }
+    }
+    if (streake) {
+        out.push_back(streak);
+    }
+
+    for (int i = 0; i < out.size(); i++) {
+        cout<<out[i]<<" ";
+    }
+
+
+}
\ No newline at end of file
diff --git a/hf2/hf3/3.cpp b/hf2/hf3/3.cpp
new file mode 100644
index 0000000..66909a1
--- /dev/null
+++ b/hf2/hf3/3.cpp
@@ -0,0 +1,46 @@
+#include <bits/stdc++.h>
+#include <iostream>
+using namespace std;
+
+int main() {
+    int a,b,c,x,y;
+    int n;
+    cin >> n;
+    vector<string> out;
+
+    for (int i = 0; i < n; i++) {
+        cin >> a >> b >> c >> x >> y; // a: kutyakaja, b: macskakaja, c: uni, x: kutya, y: macska
+        for (int j = 0; j < a; j++) { //kutya 
+            if (x>0) {
+                x--;
+            }
+        }
+        //cout<< x<<endl;
+        for (int j = 0; j < b; j++) { //macska
+            if (y>0) {
+                y--;
+            }
+        }
+        //cout<< y<<endl;
+        for (int j = 0; j < c; j++) { //uni
+            if (x>0) {
+                x--;
+            } else if (y>0) {
+                y--;
+            }
+        }
+        //cout<< x<< ' '<< y <<endl;
+        if (x == 0 && y == 0) {
+            out.push_back("YES");
+            //cout<<"ran yes";
+        } else {
+            out.push_back("NO");
+            //cout<<"ran no";
+        }
+
+    }
+    for (int i = 0; i < n; i++) {
+        cout<<out[i]<<endl;
+    }
+
+}
\ No newline at end of file