diff --git a/zad2_2 b/zad2_2
old mode 100755
new mode 100644
diff --git a/zad3_1 b/zad3_1
old mode 100755
new mode 100644
diff --git a/zad5_1 b/zad5_1
old mode 100755
new mode 100644
diff --git a/zad7_1 b/zad7_1
new file mode 100644
index 0000000..b9f747a
Binary files /dev/null and b/zad7_1 differ
diff --git a/zad7_1.cpp b/zad7_1.cpp
new file mode 100644
index 0000000..2037517
--- /dev/null
+++ b/zad7_1.cpp
@@ -0,0 +1,59 @@
+#include <iostream>
+#include <string>
+#include <sstream>
+
+using namespace std;
+
+class Vec2 {
+    private:
+        int x,y;
+    public:
+        Vec2(int _x, int _y){
+            x=_x;
+            y=_y;
+        }
+        string toString(){
+            stringstream s;
+            s << "[" << x << ", " << y << "]";
+            return s.str();
+        }
+        Vec2 operator+(const Vec2& vec){
+            return Vec2(x+vec.x, y+vec.y);
+        }
+        Vec2 operator-(const Vec2& vec){
+            return Vec2(x-vec.x, y-vec.y);
+        }
+        Vec2& operator+=(const Vec2& vec){
+            x=vec.x+x;
+            y=vec.y+y;
+            return *this;
+        }
+        Vec2& operator-=(const Vec2& vec){
+            x=vec.x-x;
+            y=vec.y-y;
+            return *this;
+        }
+        float operator*(const Vec2& vec){
+            return (float)x*vec.x + (float)y+vec.y;
+        }
+        bool operator==(const Vec2& vec){
+            if(x==vec.x && y==vec.y) return 1;
+            else return 0;
+        }
+        bool operator!=(const Vec2& vec){
+            if(x==vec.x && y==vec.y) return 0;
+            else return 1;
+        }
+};
+
+int main(){
+    Vec2 vec1 = Vec2(5,1);
+    Vec2 vec2 = Vec2(3,4);
+    Vec2 vec3 = vec1 + vec2;
+    cout << vec3.toString() << endl;
+    vec3+=vec2;
+    cout << vec3.toString() << endl;
+    vec3-=vec1;
+    cout << vec3.toString() << endl;
+    cout << vec3*vec2 << endl;
+}
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diff --git a/zad7_2 b/zad7_2
new file mode 100644
index 0000000..74f246b
Binary files /dev/null and b/zad7_2 differ
diff --git a/zad7_2.cpp b/zad7_2.cpp
new file mode 100644
index 0000000..088e04d
--- /dev/null
+++ b/zad7_2.cpp
@@ -0,0 +1,34 @@
+#include <iostream>
+#include <string>
+#include <sstream>
+
+using namespace std;
+
+template <typename num>
+class Vec2 {
+    private:
+        num x,y;
+    public:
+        Vec2(num _x, num _y){
+            x=_x;
+            y=_y;
+        }
+        string toString(){
+            stringstream s;
+            s << "[" << x << ", " << y << "]";
+            return s.str();
+        }
+        Vec2 add(const Vec2& vec){
+            return Vec2(x+vec.x, y+vec.y);
+        }
+        float multiply(const Vec2& vec){
+            return (float)x*vec.x + (float)y*vec.y;
+        }
+};
+
+int main(){
+    Vec2<float> vec1 = Vec2<float>(5.5f,1.2f);
+    Vec2<float> vec2 = Vec2<float>(3.4f,4.2f);
+    Vec2<float> vec3 = vec1.add(vec2);
+    cout << vec3.toString() << endl;
+}
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diff --git a/zad7_3.cpp b/zad7_3.cpp
new file mode 100644
index 0000000..02741e2
--- /dev/null
+++ b/zad7_3.cpp
@@ -0,0 +1,20 @@
+#include <iostream>
+
+using namespace std;
+
+template <typename type>
+class Array {
+    private:
+        type* ptrs;
+        Array(){}
+        ~Array(){}
+    public:
+        Array& operator new [](){
+            Array();
+            return *this;
+        }
+        void operator delete [](){
+            ~Array();
+        }
+
+}
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