efendi's blog

By efendi, history, 10 months ago, In English

I am new in Codeforces in that case I have some questions. In Round Div(2 , 3 , 4) contests I saw button hack. How does it work and how to hack? Should I hack another codes or not? But how I understood I should to give some hard tests to another participant's code. Is that enough? Write all you know pls?!

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