Data commit

Task/Symmetric-difference/Aime/symmetric-difference.aime

@@ -0,0 +1,34 @@
+show_sdiff(record u, x)
+{
+    record r;
+    text s;
+
+    r.copy(u);
+
+    for (s in x) {
+        if (r.key(s)) {
+            r.delete(s);
+        } else {
+            r.p_integer(s, 0);
+        }
+    }
+
+    r.vcall(o_, 0, "\n");
+}
+
+new_set(...)
+{
+    record r;
+
+    ucall(r_p_integer, 1, r, 0);
+
+    r;
+}
+
+main(void)
+{
+    show_sdiff(new_set("John", "Bob", "Mary", "Serena"),
+               new_set("Jim", "Mary", "John", "Bob"));
+
+    0;
+}