diff --git a/assignments/06-searching.md b/assignments/06-searching.md
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@@ -7,49 +7,49 @@
 # Problems:
 
 ## Easy
-- [Square Root](https://leetcode.com/problems/sqrtx/)
-- [Guess Number Higher or Lower](https://leetcode.com/problems/guess-number-higher-or-lower/)
-- [First Bad Version](https://leetcode.com/problems/first-bad-version/)
-- [Two Sum II - Input array is sorted](https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/)
-- [Valid Perfect Square](https://leetcode.com/problems/valid-perfect-square/)
-- [Arranging Coins(Easy)](https://leetcode.com/problems/arranging-coins/)
-- [Find Smallest Letter Greater Than Target](https://leetcode.com/problems/find-smallest-letter-greater-than-target/)
-- [Kth Missing Positive Number](https://leetcode.com/problems/kth-missing-positive-number/)
-- [Search Insert Position](https://leetcode.com/problems/search-insert-position/)
-- [Peak Index in a Mountain Array](https://leetcode.com/problems/peak-index-in-a-mountain-array/)
-- [Count Negative Numbers in a Sorted Matrix](https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix/)
-- [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/)
-- [Fair Candy Swap](https://leetcode.com/problems/fair-candy-swap/)
-- [Check If N and Its Double Exist](https://leetcode.com/problems/check-if-n-and-its-double-exist/)
-- [Special Array With X Elements Greater Than or Equal X](https://leetcode.com/problems/special-array-with-x-elements-greater-than-or-equal-x/)
-- [Binary Search](https://leetcode.com/problems/binary-search/)
+1 [Square Root](https://leetcode.com/problems/sqrtx/)
+2 [Guess Number Higher or Lower](https://leetcode.com/problems/guess-number-higher-or-lower/)
+3 [First Bad Version](https://leetcode.com/problems/first-bad-version/)
+4 [Two Sum II - Input array is sorted](https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/)
+5 [Valid Perfect Square](https://leetcode.com/problems/valid-perfect-square/)
+6 [Arranging Coins(Easy)](https://leetcode.com/problems/arranging-coins/)
+7 [Find Smallest Letter Greater Than Target](https://leetcode.com/problems/find-smallest-letter-greater-than-target/)
+8 [Kth Missing Positive Number](https://leetcode.com/problems/kth-missing-positive-number/)
+9 [Search Insert Position](https://leetcode.com/problems/search-insert-position/)
+10 [Peak Index in a Mountain Array](https://leetcode.com/problems/peak-index-in-a-mountain-array/)
+11 [Count Negative Numbers in a Sorted Matrix](https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix/)
+12 [Intersection of Two Arrays](https://leetcode.com/problems/intersection-of-two-arrays/)
+13 [Intersection of Two Arrays II](https://leetcode.com/problems/intersection-of-two-arrays-ii/)
+14 [Fair Candy Swap](https://leetcode.com/problems/fair-candy-swap/)
+15 [Check If N and Its Double Exist](https://leetcode.com/problems/check-if-n-and-its-double-exist/)
+16 [Special Array With X Elements Greater Than or Equal X](https://leetcode.com/problems/special-array-with-x-elements-greater-than-or-equal-x/)
+17 [Binary Search](https://leetcode.com/problems/binary-search/)
 
 ## Medium
-- [Find First and Last Position of Element in Sorted Array](https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/)
-- [Single Element in a Sorted Array](https://leetcode.com/problems/single-element-in-a-sorted-array/)
-- [Search in Rotated Sorted Array](https://leetcode.com/problems/search-in-rotated-sorted-array/)
-- [Search in Rotated Sorted Array II](https://leetcode.com/problems/search-in-rotated-sorted-array-ii/)
-- [Find Minimum in Rotated Sorted Array](https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/)
-- [Find Peak Element](https://leetcode.com/problems/find-peak-element/)
-- [Find Right Interval](https://leetcode.com/problems/find-right-interval/)
-- [Reach a Number](https://leetcode.com/problems/reach-a-number/)
-- [Maximum Value at a Given Index in a Bounded Array](https://leetcode.com/problems/maximum-value-at-a-given-index-in-a-bounded-array/)
-- [Koko Eating Bananas](https://leetcode.com/problems/koko-eating-bananas/)
-- [Minimum Absolute Sum Difference](https://leetcode.com/problems/minimum-absolute-sum-difference/)
-- [Search a 2D Matrix](https://leetcode.com/problems/search-a-2d-matrix/)
-- [Find a Peak Element II](https://leetcode.com/problems/find-a-peak-element-ii/)
-- [Frequency of the Most Frequent Element](https://leetcode.com/problems/frequency-of-the-most-frequent-element/)
-- [Find the Duplicate Number](https://leetcode.com/problems/find-the-duplicate-number/)
-- [Capacity To Ship Packages Within D Days](https://leetcode.com/problems/capacity-to-ship-packages-within-d-days/)
-- [4 Sum](https://leetcode.com/problems/4sum/)
+19 [Find First and Last Position of Element in Sorted Array](https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/)
+20 [Single Element in a Sorted Array](https://leetcode.com/problems/single-element-in-a-sorted-array/)
+21 [Search in Rotated Sorted Array](https://leetcode.com/problems/search-in-rotated-sorted-array/)
+22 [Search in Rotated Sorted Array II](https://leetcode.com/problems/search-in-rotated-sorted-array-ii/)
+23 [Find Minimum in Rotated Sorted Array](https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/)
+24 [Find Peak Element](https://leetcode.com/problems/find-peak-element/)
+25 [Find Right Interval](https://leetcode.com/problems/find-right-interval/)
+26 [Reach a Number](https://leetcode.com/problems/reach-a-number/)
+27 [Maximum Value at a Given Index in a Bounded Array](https://leetcode.com/problems/maximum-value-at-a-given-index-in-a-bounded-array/)
+28 [Koko Eating Bananas](https://leetcode.com/problems/koko-eating-bananas/)
+29 [Minimum Absolute Sum Difference](https://leetcode.com/problems/minimum-absolute-sum-difference/)
+30 [Search a 2D Matrix](https://leetcode.com/problems/search-a-2d-matrix/)
+31 [Find a Peak Element II](https://leetcode.com/problems/find-a-peak-element-ii/)
+32 [Frequency of the Most Frequent Element](https://leetcode.com/problems/frequency-of-the-most-frequent-element/)
+33 [Find the Duplicate Number](https://leetcode.com/problems/find-the-duplicate-number/)
+34 [Capacity To Ship Packages Within D Days](https://leetcode.com/problems/capacity-to-ship-packages-within-d-days/)
+35 [4 Sum](https://leetcode.com/problems/4sum/)
 
 ## Hard
-- [Median of Two Sorted Arrays](https://leetcode.com/problems/median-of-two-sorted-arrays/)
-- [Find Minimum in Rotated Sorted Array II](https://leetcode.com/problems/find-minimum-in-rotated-sorted-array-ii/)
-- [Aggressive cows](https://www.spoj.com/problems/AGGRCOW/)
-- [Book allocation](https://www.geeksforgeeks.org/allocate-minimum-number-pages/)
-- [Split Array Largest Sum](https://leetcode.com/problems/split-array-largest-sum/)
-- [Find in Mountain Array](https://leetcode.com/problems/find-in-mountain-array/)
-- [Count smaller number after Self](https://leetcode.com/problems/count-of-smaller-numbers-after-self/)
-- [Divide Chocolate Problem](https://curiouschild.github.io/leetcode/2019/06/21/divide-chocolate.html)
+36 [Median of Two Sorted Arrays](https://leetcode.com/problems/median-of-two-sorted-arrays/)
+37 [Find Minimum in Rotated Sorted Array II](https://leetcode.com/problems/find-minimum-in-rotated-sorted-array-ii/)
+38 [Aggressive cows](https://www.spoj.com/problems/AGGRCOW/)
+39 [Book allocation](https://www.geeksforgeeks.org/allocate-minimum-number-pages/)
+40 [Split Array Largest Sum](https://leetcode.com/problems/split-array-largest-sum/)
+41 [Find in Mountain Array](https://leetcode.com/problems/find-in-mountain-array/)
+42 [Count smaller number after Self](https://leetcode.com/problems/count-of-smaller-numbers-after-self/)
+43 [Divide Chocolate Problem](https://curiouschild.github.io/leetcode/2019/06/21/divide-chocolate.html)