Erastofen algoritm task (#2)

* Erastofen Grid

* Erastofen upgradet

* Erastofen app CPP language

Eratosfen/Erastofen.cpp

@@ -0,0 +1,21 @@
+#include <iostream>
+using namespace std;
+int main()
+{
+ int n;
+ cout << "n= ";
+ cin >> n;
+ int *a = new int[n + 1];
+ for (int i = 0; i < n + 1; i++)
+ a[i] = i;
+ for (int p = 2; p < n + 1; p++)
+ {
+ if (a[p] != 0)
+ {
+ cout << a[p] << endl;
+ for (int j = p*p; j < n + 1; j += p)
+ a[j] = 0;
+ }
+ }
+ cin.get(); cin.get();
+}