Data commit

Task/Palindrome-dates/Sidef/palindrome-dates.sidef

@@ -0,0 +1,17 @@
+var palindates = gather {
+    for y in (2020 .. 9999) {
+        var (m, d) = Str(y).flip.last(4).split(2)...
+        with ([y,m,d].join('-')) {|t|
+            take(t) if Date.valid(t, "%Y-%m-%d")
+        }
+    }
+}
+
+say "Count of palindromic dates [2020..9999]: #{palindates.len}"
+
+for a,b in ([
+    ["First 15:", palindates.head(15)],
+    ["Last 15:",  palindates.tail(15)]
+]) {
+    say ("\n#{a}\n", b.slices(5).map { .join("   ") }.join("\n"))
+}