Update README.md

README.md

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-# Competitive-Programming-Resources
+# Competitive-Programming-Resources
+
+## Problems & Tips
+- https://cses.fi/problemset/
+- https://cp-algorithms.com
+- https://atcoder.jp/contests/dp/tasks
+- https://leetcode.com/discuss/interview-question/352460/Google-Online-Assessment-Questions
+- https://twchen.gitbook.io/leetcode/
+- https://www.pramp.com/#/
+- https://docs.google.com/document/d/1wUCqhVHydWiDk6FJdFLSMpgigNrGcs4OFZg0Wa7JGEw/edit
+- https://www.hackerearth.com/practice/?utm_medium=referral&utm_campaign=Algodsblog&utm_source=slack
+- https://interviewing.io
+- https://www.quora.com/What-are-the-best-ways-to-master-dynamic-programming/answer/Sameer-Gulati-3
+- https://www.quora.com/How-do-I-get-good-at-math-for-competitive-programming/answer/Sameer-Gulati-3
+- https://www.quora.com/How-can-I-be-good-at-graph-theory-based-programming-problems-in-competitive-programming/answer/Sameer-Gulati-3
+- https://www.quora.com/What-is-a-list-of-data-structures-that-a-competitive-programmer-must-know/answer/Sameer-Gulati-3?c
+- https://leetcode.com/discuss/general-discussion/651719/how-to-solve-dp-string-template-and-4-steps-to-be-followed
+- https://technicalbattle.blogspot.com/2020/05/best-blogs-on-codeforces-links-for-best.html
+- https://petr-mitrichev.blogspot.com
+- https://www.hackerearth.com/blog/developers/7-steps-to-improve-your-data-structure-and-algorithm-skills/
+
+## Platforms to Practice: 
+- http://codeforces.com/contests
+- https://www.codechef.com
+- https://leetcode.com
+- https://atcoder.jp/contests/
+- https://www.topcoder.com
+- https://www.spoj.com/users/lebron/
+- https://www.hackerrank.com/dashboard
+- https://projecteuler.net/archives
+- https://www.hackerearth.com/challenges/
+- https://www.dailycodingproblem.com
+- https://www.urionlinejudge.com.br/judge/en/login
+
+
+## Problem Solving Books: 
+- A Path to Combinatorics for Undergraduates
+- Competitive Programmers Handbook - Antti Laaksonen - July 2018
+- Competitive Programming 3 - The New Lower Bound of Programming Contests
+- Cracking the Coding Interview 189 Programming Questions and Solutions
+- Elements of Programming Interviews - The Insider's Guide - Adnan Aziz, Tsung-Hsien Lee, Amit Prakash
+- Fifty Challenging Problems in Probability. - Fredrick Mosteller
+- Guide to Competitive Programming - Learning and Improving Algorithms ThroughContests
+- How to Solve It - A New Aspect of Mathematical Method
+- Problem Books in Mathematics -  by K. Bencsath P.R. Halmos
+- The Art and Craft of Problem Solving, 3rd Edition
+
+## Video Tutorials
+- https://www.youtube.com/channel/UCBr_Fu6q9iHYQCh13jmpbrg
+- https://www.youtube.com/channel/UCKuDLsO0Wwef53qdHPjbU2Q
+- https://www.youtube.com/channel/UCfv8cds8AfIM3UZtAWOz6Gg
+- https://www.youtube.com/channel/UC1fLEeYICmo3O9cUsqIi7HA
+- https://www.youtube.com/channel/UCRPMAqdtSgd0Ipeef7iFsKw
+- https://www.youtube.com/channel/UC9fDC_eBh9e_bogw87DbGKQ
+
+# Interview Prep
+- https://www.pramp.com/#/
+- https://interviewing.io
+- https://docs.google.com/document/d/1wUCqhVHydWiDk6FJdFLSMpgigNrGcs4OFZg0Wa7JGEw/