Data commit

Task/Perfect-numbers/Sidef/perfect-numbers-1.sidef

@@ -0,0 +1,7 @@
+func is_perfect(n) {
+    n.sigma == 2*n
+}
+
+for n in (1..10000) {
+    say n if is_perfect(n)
+}

Task/Perfect-numbers/Sidef/perfect-numbers-2.sidef

@@ -0,0 +1,14 @@
+func is_even_perfect(n) {
+
+    var square = (8*n + 1)
+    square.is_square || return false
+
+    var t = ((square.isqrt + 1) / 2)
+    t.is_smooth(2) || return false
+
+    t-1 -> is_prime
+}
+
+for n in (1..10000) {
+    say n if is_even_perfect(n)
+}