Editorial for Số tam phương
Remember to use this editorial only when stuck, and not to copy-paste code from it. Please be respectful to the problem author and editorialist.
Submitting an official solution before solving the problem yourself is a bannable offence.
Submitting an official solution before solving the problem yourself is a bannable offence.
Cách 1:
Cách thực tế tính ~m_k~:
Thuật toán thực hiện tìm kiếm nhị phân trên khoảng ~[1, 3k]~ để xác định ~m_k~.
Thuật toán
Cách 2
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