Ahsan_Lasa's blog

By Ahsan_Lasa, history, 4 months ago, In English

i am doing problem solving last 2 month . firstly i picked some problems which were 1200-1300 rating and tried to solve after that i trying to solve 1400 rating problem its too hard for me to solve. Tell me what should i do for solving 1400 or more rating problem. Thank You

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