Updated hw6 to a newer version

Signed-off-by: jmug <u.g.a.mariano@gmail.com>

hw6/hw4programs/is_prime.oat

@@ -0,0 +1,31 @@
+global list = int[] {3, 5, 7, 8, 11, 16, 17, 21};
+
+bool isPrime (int n) {
+  if (n < 2) {
+    return false;
+  }
+
+  for (var i = 2; i < n; i = i + 1;)
+  {
+    var cur_num = n;
+    while (cur_num >= i) {
+      cur_num = cur_num - i;
+    }
+
+    if (cur_num == 0) {
+      return false;
+    }
+  }
+  return true;
+}
+
+int program (int argc, string[] argv) {
+  var answer = 0;
+  for (var i = 0; i < 8; i = i + 1;)
+  {
+    if(isPrime(list[i])) {
+      answer = answer + 1;
+    }
+  }
+  return answer;
+}