June 2018 Update

Task/Equilibrium-index/Aime/equilibrium-index.aime

@@ -0,0 +1,25 @@
+list
+eqindex(list l)
+{
+    integer e, i, s, sum;
+    list x;
+
+    s = sum = 0;
+    l.ucall(add_i, 1, sum);
+    for (i, e in l) {
+        if (s * 2 + e == sum) {
+            x.append(i);
+        }
+        s += e;
+    }
+
+    x;
+}
+
+integer
+main(void)
+{
+    list(-7, 1, 5, 2, -4, 3, 0).eqindex.ucall(o_, 0, "\n");
+
+    0;
+}