Initial data commit

Task/Matrix-transposition/D/matrix-transposition-2.d

@@ -0,0 +1,16 @@
+T[][] transpose(T)(in T[][] m) pure nothrow {
+    auto r = new typeof(return)(m[0].length, m.length);
+    foreach (immutable nr, const row; m)
+        foreach (immutable nc, immutable c; row)
+            r[nc][nr] = c;
+    return r;
+}
+
+void main() {
+    import std.stdio;
+
+    immutable M = [[10, 11, 12, 13],
+                   [14, 15, 16, 17],
+                   [18, 19, 20, 21]];
+    writefln("%(%(%2d %)\n%)", M.transpose);
+}