A – Function
在考场上只推出来 \(f(x) = \mu(x) * \sigma_0^2(x) = \prod_{i = 1}^m (2c_i + 1)\),显然用 min_25 就可以直接秒杀(但是我忘了板子呜呜呜呜呜)
Continue reading →在考场上只推出来 \(f(x) = \mu(x) * \sigma_0^2(x) = \prod_{i = 1}^m (2c_i + 1)\),显然用 min_25 就可以直接秒杀(但是我忘了板子呜呜呜呜呜)
Continue reading →