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Task/Pernicious-numbers/Sidef/pernicious-numbers.sidef

@@ -0,0 +1,21 @@
+func is_pernicious(n) {
+    var c = 2693408940;  # primes < 32 as set bits
+    while (n > 0) { c >>= 1; n &= (n - 1) }
+    c & 1;
+}
+
+var (i, *p) = 0;
+while (p.len < 25) {
+    p << i if is_pernicious(i);
+    ++i;
+}
+
+say p.join(' ');
+
+var (i, *p) = 888888877;
+while (i < 888888888) {
+    p << i if is_pernicious(i);
+    ++i;
+}
+
+say p.join(' ');