More problems.

problemlist.md

@@ -47,6 +47,10 @@ A little collection of interesting problems that I randomly decided to do.
 
 	Interesting reroot problem, there's not much for me to say about it.
 
+- [F. Gardening Friends](https://codeforces.com/problemset/problem/1822/F)
+
+	Very standard reroot problem, but interesting as an exercise.
+
 ## DP
 
 - [D. World is Mine](https://codeforces.com/problemset/problem/1987/D)
@@ -133,6 +137,10 @@ A little collection of interesting problems that I randomly decided to do.
 	it's interesting to think about regardless, can also be solved with a binary search, but
 	it's not required.
 
+- [F. Expected Median](https://codeforces.com/problemset/problem/1999/F)
+
+	Kinda introductory combinatory problem, but interesting as an exercise.
+
 ## DSU
 
 - [https://codeforces.com/problemset/problem/1985/H1](https://codeforces.com/problemset/problem/1985/H1)
@@ -151,3 +159,9 @@ A little collection of interesting problems that I randomly decided to do.
 	
 	Interesting problem to think about, good introduction to divide and conquer in my opinion and
 	can be used as a bridge to segment trees.
+
+## String
+
+- [G1. Division + LCP (easy version)](https://codeforces.com/problemset/problem/1968/G1)
+
+	Can be solved in a lot of ways, but I find hashing with binary search simpler.