RenSiYu6 @ 2022-12-30 15:49:56
求助，没想出来代码
by hj23309 @ 2022-12-30 15:55:29
@18681800383cc 线段树模板题
by liangbowen @ 2022-12-30 16:01:30
@18681800383cc 您可以点击题目右上方的"题解"按钮。
by RenSiYu6 @ 2022-12-30 19:48:07
@hj23309 @liangbowen 3克油