diff --git a/cpp/sr.cpp b/cpp/sr.cpp
new file mode 100644
index 0000000..4900533
--- /dev/null
+++ b/cpp/sr.cpp
@@ -0,0 +1,37 @@
+#include <iostream>
+#include <iomanip>
+using namespace std;
+
+int main()
+{
+    int a[] = {41, 558, 541, 559,63, 62, 551, 155};
+    int n,i,max,min;
+    float sr,suma;
+
+    n=sizeof(a)/sizeof(int);
+    cout<<"n = "<<n<<endl;
+    for(i=0;i<n;i++)
+        cout<<a[i]<<" ";
+
+    max=a[0];
+    for(i=1;i<n;i++)
+        if(a[i]>max) max=a[i];
+    cout<<"\n max = "<<max;
+
+    min=a[0];
+    for(i=1;i<n;i++)
+        if(a[i]<min) min=a[i];
+    cout<<"\n min= "<<min;
+
+    suma=0;
+    for(i=0;i<n;i++)
+        suma=suma+a[i];
+    cout<<"\n suma = "<<suma;
+    sr=(suma-max-min)/(n-2);
+    cout<<"\n srednia = "<<setprecision(3)<<sr;
+
+
+    system("pause > null");
+    return 0;
+}
+
diff --git a/cpp/sum_2.cpp b/cpp/sum_2.cpp
new file mode 100644
index 0000000..283fadb
--- /dev/null
+++ b/cpp/sum_2.cpp
@@ -0,0 +1,19 @@
+//suma liczb parzystych
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int t[] = {4,7,9,3,10,2,5,6};
+    int suma,i,n;
+    n=sizeof(t)/sizeof(t[0]);
+
+    suma=0;
+    for(i=0;i<n;i++)
+        if(t[i]%2==0) suma += t[i];
+
+    cout<<"\n suma = "<<suma;
+
+}
+
diff --git a/cpp/tab3.cpp b/cpp/tab3.cpp
new file mode 100644
index 0000000..0412f1e
--- /dev/null
+++ b/cpp/tab3.cpp
@@ -0,0 +1,19 @@
+#include <iostream>
+using namespace std;
+int main()
+{
+    int n,i;
+    cout<<"n = ";
+    cin>>n;
+
+    int *a = new int [n];
+
+    for(i=0;i<n;i++){
+        cout<<"a["<<i<<"]=";
+        cin>>a[i];
+    }
+
+    delete [] a;
+    return 0;
+}
+
diff --git a/cpp/zl.cpp b/cpp/zl.cpp
new file mode 100644
index 0000000..d5f07e8
--- /dev/null
+++ b/cpp/zl.cpp
@@ -0,0 +1,24 @@
+#include <iostream>
+using namespace std;
+
+int main()
+{
+    int i,n;
+    float zl,suma;
+    float f0,f1;
+    cout<<"n = ";
+    cin>>n;
+    f0=0;
+    f1=1;
+    cout<<f0<<" "<<f1<<" ";
+    for(i=2;i<=n;i++){
+        suma=f0+f1;
+        cout<<suma<<" ";
+        f0=f1;
+        f1=suma;
+    }
+    cout<<"\n zl = "<<f1/f0;
+
+    return 0;
+}
+