Initial data commit

Task/Factorial/Clay/factorial-1.clay

@@ -0,0 +1,14 @@
+factorialRec(n) {
+    if (n == 0) return 1;
+    return n * factorialRec(n - 1);
+}
+
+factorialIter(n) {
+    for (i in range(1, n))
+        n *= i;
+    return n;
+}
+
+factorialFold(n) {
+    return reduce(multiply, 1, range(1, n + 1));
+}

Task/Factorial/Clay/factorial-2.clay

@@ -0,0 +1,2 @@
+[n|n > 0] factorialStatic(static n) = n * factorialStatic(static n - 1);
+overload factorialStatic(static 0) = 1;

Task/Factorial/Clay/factorial-3.clay

@@ -0,0 +1,4 @@
+[N|Integer?(N)] factorial(n: N) {
+    if (n == 0) return N(1);
+    return n * factorial(n - 1);
+}

Task/Factorial/Clay/factorial-4.clay

@@ -0,0 +1,7 @@
+main() {
+    println(factorialRec(5));           // 120
+    println(factorialIter(5));          // 120
+    println(factorialFold(5));          // 120
+    println(factorialStatic(static 5)); // 120
+    println(factorial(Int64(20)));      // 2432902008176640000
+}