sqrtDataStructure @ 2021-02-19 20:05:52
by _5011_ @ 2021-02-19 20:08:44
前缀和 = -1阶差分
by g1306374356 @ 2021-07-30 11:32:05
我都没用前缀和,直接暴力模拟AC(建议加强数据)
by _l_l_l_l_l_ @ 2021-08-08 10:31:40
@fjу666 差分完得用前缀和还原
by 天有不测风云 @ 2021-08-17 17:16:55
@WenZKbb 那也建议添加“差分”标签
弄得我想了半天前缀和怎么做
by _l_l_l_l_l_ @ 2021-08-17 18:33:50
@天有不测风云 其实这题数据太水,暴力也能过...