Update 12-math.md

satriii · web-flow · commit 21cf58d8bd91 · 2021-12-03T21:33:16.000+05:30
diff --git a/assignments/12-math.md b/assignments/12-math.md
@@ -10,14 +10,31 @@
 - [Power of Four](https://leetcode.com/problems/power-of-four/)
 - [Factorial](https://practice.geeksforgeeks.org/problems/factorial5739/1/?category[]=Mathematical&category[]=Mathematical&page=3&query=category[]Mathematicalpage3category[]Mathematical)
 - [Excel Sheet Column Title](https://leetcode.com/problems/excel-sheet-column-title/)
+- [Maximum Product of Three Numbers](https://leetcode.com/problems/maximum-product-of-three-numbers/)
+- [Climbing Stairs](https://leetcode.com/problems/climbing-stairs/)
+- [Self Dividing Numbers](https://leetcode.com/problems/self-dividing-numbers/)
+- [Add Binary](https://leetcode.com/problems/add-binary/)
+- [Power of Two](https://leetcode.com/problems/power-of-two/)
 
 ## Medium
 - [Integer to Roman](https://leetcode.com/problems/integer-to-roman/)
 - [Unique Paths](https://leetcode.com/problems/unique-paths/)
 - [Gray Code](https://leetcode.com/problems/gray-code/)
 - [Perfect Squares](https://leetcode.com/problems/perfect-squares/)
 - [Next Greater Element III](https://leetcode.com/problems/next-greater-element-iii/)
+- [Angle Between Hands of a Clock](https://leetcode.com/problems/angle-between-hands-of-a-clock/)
+- [String to Integer (atoi)](https://leetcode.com/problems/string-to-integer-atoi/)
+- [The k<sup>th</sup> Factor of n](https://leetcode.com/problems/the-kth-factor-of-n/)
+- [Queries on Number of Points Inside a Circle](https://leetcode.com/problems/queries-on-number-of-points-inside-a-circle/)
+- [Product of Array Except Self](https://leetcode.com/problems/product-of-array-except-self/)
+- [Multiply Strings](https://leetcode.com/problems/multiply-strings/)
+- [Encode and Decode TinyURL](https://leetcode.com/problems/encode-and-decode-tinyurl/)
+- [Integer Break](https://leetcode.com/problems/integer-break/)
+
 
 ## Hard
 - [Permutation Sequence](https://leetcode.com/problems/permutation-sequence/)
+- [Basic Calculator](https://leetcode.com/problems/basic-calculator/)
+- [Max Points on a Line](https://leetcode.com/problems/max-points-on-a-line/)
+- [Number of Digit One](https://leetcode.com/problems/number-of-digit-one/)
 
