diff --git a/assignments/07-sorting.md b/assignments/07-sorting.md
index d9517bd2c..24ec9e56f 100644
--- a/assignments/07-sorting.md
+++ b/assignments/07-sorting.md
@@ -1,58 +1,62 @@
-# Videos
-- [Bubble Sort](https://youtu.be/F5MZyqRp_IM)
-- [Selection Sort](https://youtu.be/Nd4SCCIHFWk)
-- [Insertion Sort](https://youtu.be/By_5-RRqVeE)
-- [Cycle Sort](https://www.youtube.com/watch?v=JfinxytTYFQ&list=RDCMUCBGOUQHNNtNGcGzVq5rIXjw&start_radio=1&rv=JfinxytTYFQ&t=2)
-- [Merge Sort](https://youtu.be/iKGAgWdgoRk)
-- [Quick Sort](https://youtu.be/Z8svOqamag8)
-
-# Questions
-
-## Easy
-- [Merge Sorted Array](https://leetcode.com/problems/merge-sorted-array/)
-- [Majority Element](https://leetcode.com/problems/majority-element/)
-- [Contains Duplicate](https://leetcode.com/problems/contains-duplicate/)
-- [Missing Number](https://leetcode.com/problems/missing-number/)
-- [Intersection of Two Arrays](https://leetcode.com/problems/intersection-of-two-arrays/)
-- [Intersection of Two Arrays II](https://leetcode.com/problems/intersection-of-two-arrays-ii/)
-- [Third Maximum Number](https://leetcode.com/problems/third-maximum-number/)
-- [Assign Cookies](https://leetcode.com/problems/assign-cookies/)
-- [Array Partition I](https://leetcode.com/problems/array-partition-i/)
-- [Maximum Product of Three Numbers](https://leetcode.com/problems/maximum-product-of-three-numbers/)
-- [Sort Array By Parity](https://leetcode.com/problems/sort-array-by-parity/)
-- [Sort Array By Parity II](https://leetcode.com/problems/sort-array-by-parity-ii/)
-- [Largest Perimeter Triangle](https://leetcode.com/problems/largest-perimeter-triangle/)
-- [Squares of a Sorted Array](https://leetcode.com/problems/squares-of-a-sorted-array/)
-- [Matrix Cells in Distance Order](https://leetcode.com/problems/matrix-cells-in-distance-order/)
-- [Height Checker](https://leetcode.com/problems/height-checker/)
-- [Relative Sort Array](https://leetcode.com/problems/relative-sort-array/)
-- [Minimum Absolute Difference](https://leetcode.com/problems/minimum-absolute-difference/)
-- [Rank Transform of an Array](https://leetcode.com/problems/rank-transform-of-an-array/)
-- [Sort Integers by The Number of 1 Bits](https://leetcode.com/problems/sort-integers-by-the-number-of-1-bits/)
-- [How Many Numbers Are Smaller Than the Current Number](https://leetcode.com/problems/how-many-numbers-are-smaller-than-the-current-number/)
-- [Maximum Product of Two Elements in an Array](https://leetcode.com/problems/maximum-product-of-two-elements-in-an-array/)
-- [Average Salary Excluding the Minimum and Maximum Salary](https://leetcode.com/problems/average-salary-excluding-the-minimum-and-maximum-salary/)
-- [Make Two Arrays Equal by Reversing Sub-arrays](https://leetcode.com/problems/make-two-arrays-equal-by-reversing-sub-arrays/)
-- [Can Make Arithmetic Progression From Sequence](https://leetcode.com/problems/can-make-arithmetic-progression-from-sequence/)
-- [Sort Array by Increasing Frequency](https://leetcode.com/problems/sort-array-by-increasing-frequency/)
-- [Special Array With X Elements Greater Than or Equal X](https://leetcode.com/problems/special-array-with-x-elements-greater-than-or-equal-x/)
-- [Find all numbers disappeared in an array](https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array/)
-- [Set Mismatch](https://leetcode.com/problems/set-mismatch/)
-- [2Sum](https://leetcode.com/problems/two-sum/)
-
-## Medium
-- [3Sum](https://leetcode.com/problems/3sum/)
-- [3Sum Closest](https://leetcode.com/problems/3sum-closest/)
-- [4Sum](https://leetcode.com/problems/4sum/)
-- [Group Anagrams](https://leetcode.com/problems/group-anagrams/)
-- [Merge Intervals](https://leetcode.com/problems/merge-intervals/)
-- [Sort Colors](https://leetcode.com/problems/sort-colors/)
-- [Insertion Sort List](https://leetcode.com/problems/insertion-sort-list/)
-- [Sort List](https://leetcode.com/problems/sort-list/)
-- [Largest Number](https://leetcode.com/problems/largest-number/)
-- [Kth Largest Element in an Array](https://leetcode.com/problems/kth-largest-element-in-an-array/)
-- [Find the Duplicate Number](https://leetcode.com/problems/find-the-duplicate-number/)
-- [Find all Duplicates in an array](https://leetcode.com/problems/find-all-duplicates-in-an-array/)
-
-## Hard
-- [First missing Positive](https://leetcode.com/problems/first-missing-positive/)
+## 📹 Videos
+
+- [ ] [Bubble Sort](https://youtu.be/F5MZyqRp_IM)
+- [ ] [Selection Sort](https://youtu.be/Nd4SCCIHFWk)
+- [ ] [Insertion Sort](https://youtu.be/By_5-RRqVeE)
+- [ ] [Cycle Sort](https://www.youtube.com/watch?v=JfinxytTYFQ&list=RDCMUCBGOUQHNNtNGcGzVq5rIXjw&start_radio=1&rv=JfinxytTYFQ&t=2)
+- [ ] [Merge Sort](https://youtu.be/iKGAgWdgoRk)
+- [ ] [Quick Sort](https://youtu.be/Z8svOqamag8)
+
+## 🧩 Questions
+
+### ✅ Easy
+
+- [ ] [Merge Sorted Array](https://leetcode.com/problems/merge-sorted-array/)
+- [ ] [Majority Element](https://leetcode.com/problems/majority-element/)
+- [ ] [Contains Duplicate](https://leetcode.com/problems/contains-duplicate/)
+- [ ] [Missing Number](https://leetcode.com/problems/missing-number/)
+- [ ] [Intersection of Two Arrays](https://leetcode.com/problems/intersection-of-two-arrays/)
+- [ ] [Intersection of Two Arrays II](https://leetcode.com/problems/intersection-of-two-arrays-ii/)
+- [ ] [Third Maximum Number](https://leetcode.com/problems/third-maximum-number/)
+- [ ] [Assign Cookies](https://leetcode.com/problems/assign-cookies/)
+- [ ] [Array Partition I](https://leetcode.com/problems/array-partition-i/)
+- [ ] [Maximum Product of Three Numbers](https://leetcode.com/problems/maximum-product-of-three-numbers/)
+- [ ] [Sort Array By Parity](https://leetcode.com/problems/sort-array-by-parity/)
+- [ ] [Sort Array By Parity II](https://leetcode.com/problems/sort-array-by-parity-ii/)
+- [ ] [Largest Perimeter Triangle](https://leetcode.com/problems/largest-perimeter-triangle/)
+- [ ] [Squares of a Sorted Array](https://leetcode.com/problems/squares-of-a-sorted-array/)
+- [ ] [Matrix Cells in Distance Order](https://leetcode.com/problems/matrix-cells-in-distance-order/)
+- [ ] [Height Checker](https://leetcode.com/problems/height-checker/)
+- [ ] [Relative Sort Array](https://leetcode.com/problems/relative-sort-array/)
+- [ ] [Minimum Absolute Difference](https://leetcode.com/problems/minimum-absolute-difference/)
+- [ ] [Rank Transform of an Array](https://leetcode.com/problems/rank-transform-of-an-array/)
+- [ ] [Sort Integers by The Number of 1 Bits](https://leetcode.com/problems/sort-integers-by-the-number-of-1-bits/)
+- [ ] [How Many Numbers Are Smaller Than the Current Number](https://leetcode.com/problems/how-many-numbers-are-smaller-than-the-current-number/)
+- [ ] [Maximum Product of Two Elements in an Array](https://leetcode.com/problems/maximum-product-of-two-elements-in-an-array/)
+- [ ] [Average Salary Excluding the Minimum and Maximum Salary](https://leetcode.com/problems/average-salary-excluding-the-minimum-and-maximum-salary/)
+- [ ] [Make Two Arrays Equal by Reversing Sub-arrays](https://leetcode.com/problems/make-two-arrays-equal-by-reversing-sub-arrays/)
+- [ ] [Can Make Arithmetic Progression From Sequence](https://leetcode.com/problems/can-make-arithmetic-progression-from-sequence/)
+- [ ] [Sort Array by Increasing Frequency](https://leetcode.com/problems/sort-array-by-increasing-frequency/)
+- [ ] [Special Array With X Elements Greater Than or Equal X](https://leetcode.com/problems/special-array-with-x-elements-greater-than-or-equal-x/)
+- [ ] [Find all numbers disappeared in an array](https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array/)
+- [ ] [Set Mismatch](https://leetcode.com/problems/set-mismatch/)
+- [ ] [2Sum](https://leetcode.com/problems/two-sum/)
+
+### 🟠 Medium
+
+- [ ] [3Sum](https://leetcode.com/problems/3sum/)
+- [ ] [3Sum Closest](https://leetcode.com/problems/3sum-closest/)
+- [ ] [4Sum](https://leetcode.com/problems/4sum/)
+- [ ] [Group Anagrams](https://leetcode.com/problems/group-anagrams/)
+- [ ] [Merge Intervals](https://leetcode.com/problems/merge-intervals/)
+- [ ] [Sort Colors](https://leetcode.com/problems/sort-colors/)
+- [ ] [Insertion Sort List](https://leetcode.com/problems/insertion-sort-list/)
+- [ ] [Sort List](https://leetcode.com/problems/sort-list/)
+- [ ] [Largest Number](https://leetcode.com/problems/largest-number/)
+- [ ] [Kth Largest Element in an Array](https://leetcode.com/problems/kth-largest-element-in-an-array/)
+- [ ] [Find the Duplicate Number](https://leetcode.com/problems/find-the-duplicate-number/)
+- [ ] [Find all Duplicates in an array](https://leetcode.com/problems/find-all-duplicates-in-an-array/)
+
+### 🔴 Hard
+
+- [ ] [First Missing Positive](https://leetcode.com/problems/first-missing-positive/)