RE求助，一直没找到错误的点（编译器提示47,48行出问题）

P3373 【模板】线段树 2

4748行怎么了，没有CE啊
by SnapYust @ 2023-07-26 23:12:17

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@[lwx20211103](/user/727008)
by SnapYust @ 2023-07-26 23:12:29

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@[SnapYust](/user/747475) 是RE
by lwx20211103 @ 2023-07-27 10:45:06

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@[SnapYust](/user/747475) 应该是调试的时候提示那里RE
by lwx20211103 @ 2023-07-27 10:45:35

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