【組合數】2021ICPC濟南補題-C Optimal Strategy

題目鏈接 Description Ena and Mizuki are playing a game. There are n items in front of them, numbered ...

【高斯消元】2021ICPC濟南補題-J Determinant

題目鏈接 Description Alice uses the excellent property of the matrix \(A^TA\) to find the determinant ...