@[ISU_152](/user/1017020) $n\leq 3 \times 10^6$。 by N1008_9 @ 2023-11-08 14:31:01
@[ISU_152](/user/1017020) 扩大点数组长度，输入输出用scanf和printf,不然会超时 by acm185 @ 2023-11-10 14:25:23