how much experince of programming and which language i need for inoi and ioi?
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on [ Competitive Programming: What was Anudeep Nekkanti’s Competitive Programming strategy to become 35th in Global ranking, in just 6-7 months? ]
About language, then i must say you may see that most of the high rated coders code in C++ as it is fast, and rich in terms of Library functions, Read baout STL in C++.