From b1a1e21fab073ca08d28847aeae48de9d90b9e61 Mon Sep 17 00:00:00 2001
From: Nguyen Minh Quan <30571817+minhquanym@users.noreply.github.com>
Date: Wed, 14 Oct 2020 21:18:09 +0700
Subject: [PATCH] Add problemsets and competitive programming sites (#4075)

---
 problem-sets-competitive-programming.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/problem-sets-competitive-programming.md b/problem-sets-competitive-programming.md
index d5b8ab31..366e29b3 100644
--- a/problem-sets-competitive-programming.md
+++ b/problem-sets-competitive-programming.md
@@ -23,6 +23,8 @@
 * [Coderbyte](https://coderbyte.com)
 * [Codewars](http://www.codewars.com)
 * [Codingame](https://www.codingame.com/start)
+* [COCI](https://hsin.hr/coci/)
+* [E-olymp](https://www.e-olymp.com/en/)
 * [Facebook Hackercup](https://www.facebook.com/hackercup)
 * [Google Code Jam](https://codingcompetitions.withgoogle.com/codejam)
 * [HackerEarth](https://www.hackerearth.com)
@@ -69,6 +71,7 @@
 * [Codeforces](http://codeforces.com/problemset)
 * [Codility](https://codility.com/programmers/)
 * [Coding Bat](http://codingbat.com/java)
+* [CSES Problem Set](https://cses.fi/problemset/)
 * [Exercism](http://exercism.io)
 * [Geeks For Geeks](http://www.geeksforgeeks.org)
 * [Google Code Jam - Practise](https://code.google.com/codejam/contests.html)
-- 
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