diff --git a/README.md b/README.md
index 5cad1d8..8274b0d 100644
--- a/README.md
+++ b/README.md
@@ -36,3 +36,9 @@ Task | Solution
 Task | Solution
 -----| --------
 [PassingCars](https://app.codility.com/programmers/lessons/5-prefix_sums/passing_cars/) | https://app.codility.com/demo/results/training9CQXVB-6SV/
+
+## Lesson 6: Sorting
+
+Task | Solution
+-----| --------
+[Distinct](https://app.codility.com/programmers/lessons/6-sorting/) | https://app.codility.com/demo/results/training8DYNNM-G5T/
diff --git a/lessons/Distinct.js b/lessons/Distinct.js
new file mode 100644
index 0000000..9e30560
--- /dev/null
+++ b/lessons/Distinct.js
@@ -0,0 +1,13 @@
+// you can write to stdout for debugging purposes, e.g.
+// console.log('this is a debug message');
+
+function solution(A) {
+    let obj = {};
+
+    for (let i = 0; i < A.length; i++) {
+        const element = A[i];
+        obj[element] = !obj[element] ? 1 : obj[element] + 1;
+    }
+
+    return Object.keys(obj).length;
+}