restructure and add ipi texs

2019-11-06 18:24:04 +01:00
parent e21da561fc
commit 8fd8d2a485
155 changed files with 129 additions and 0 deletions
@@ -0,0 +1,29 @@
+#include "fcpp.hh"
+
+int main ()
+{
+    const int n = 500000;
+    bool prim[n];
+
+    // Initialisierung
+    prim[0] = false;
+    prim[1] = false;
+    for (int i=2; i<n; i=i+1)
+        prim[i] = true;
+
+    // Sieb
+    for (int i=2; i<=sqrt((double) n); i=i+1)
+        if (prim[i])
+            for (int j=2*i; j<n; j=j+i)
+                prim[j] = false;
+
+    // Ausgabe
+    int m=0;
+    for (int i=0; i<n; i=i+1)
+      if (prim[i]) 
+        m = m+1;
+    print("Anzahl Primzahlen:");
+    print(m);
+    
+    return 0;
+}