Data commit

Task/Knuth-shuffle/D/knuth-shuffle-1.d

@@ -0,0 +1,7 @@
+void main() {
+    import std.stdio, std.random;
+
+    auto a = [1, 2, 3, 4, 5, 6, 7, 8, 9];
+    a.randomShuffle;
+    a.writeln;
+}

Task/Knuth-shuffle/D/knuth-shuffle-2.d

@@ -0,0 +1,14 @@
+import std.stdio, std.algorithm, std.random, std.range;
+
+void knuthShuffle(Range)(Range r)
+if (isRandomAccessRange!Range && hasLength!Range &&
+    hasSwappableElements!Range) {
+    foreach_reverse (immutable i, ref ri; r[1 .. $ - 1])
+        ri.swap(r[uniform(0, i + 1)]);
+}
+
+void main() {
+    auto a = [1, 2, 3, 4, 5, 6, 7, 8, 9];
+    a.knuthShuffle;
+    a.writeln;
+}