Initial data commit

Task/Evaluate-binomial-coefficients/D/evaluate-binomial-coefficients-1.d

@@ -0,0 +1,16 @@
+T binomial(T)(in T n, T k) pure nothrow {
+    if (k > (n / 2))
+        k = n - k;
+    T bc = 1;
+    foreach (T i; T(2) .. k + 1)
+        bc = (bc * (n - k + i)) / i;
+    return bc;
+}
+
+void main() {
+    import std.stdio, std.bigint;
+
+    foreach (const d; [[5, 3], [100, 2], [100, 98]])
+        writefln("(%3d %3d) = %s", d[0], d[1], binomial(d[0], d[1]));
+    writeln("(100  50) = ", binomial(100.BigInt, 50.BigInt));
+}

Task/Evaluate-binomial-coefficients/D/evaluate-binomial-coefficients-2.d

@@ -0,0 +1,22 @@
+T BinomialCoeff(T)(in T n, in T k)
+{
+    T nn = n, kk = k, c = cast(T)1;
+
+    if (kk > nn - kk) kk = nn - kk;
+
+    for (T i = cast(T)0; i < kk; i++)
+    {
+        c = c * (nn - i);
+        c = c / (i + cast(T)1);
+    }
+
+    return c;
+}
+
+void main()
+{
+    import std.stdio, std.bigint;
+
+    BinomialCoeff(10UL, 3UL).writeln;
+    BinomialCoeff(100.BigInt, 50.BigInt).writeln;
+}