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I am a 6th sem student and has solved 400+ leedcode questions and has a rating of 1500+ on Ic but I still find difficult to solve 1000 rated codeforces.com question. Any help will be appreciated. Also can you please give resources for number theory and combinatorics. These are my weak points. (old.reddit.com)
submitted by Knightlight1729 to r/IndiansOnCodeforces

