请问为什么会RE??

P3178 [HAOI2015] 树上操作

会不会是爆了long long 或者数组越界了@ \_ETO
by xyx_xcc @ 2017-11-27 15:15:15


@ \_ETO
by xyx_xcc @ 2017-11-27 15:15:30


@ \_ETO
by xyx_xcc @ 2017-11-27 16:16:05


@ \_ETO
by 汪从文 @ 2017-11-27 17:06:16


额刚刚才看到
by orzcyand1317 @ 2017-11-27 21:20:32


对不起qwq
by orzcyand1317 @ 2017-11-27 21:20:44


(下午去上课了
by orzcyand1317 @ 2017-11-27 21:21:08


@[JACKLOVETHREE](/space/show?uid=34941) 谢谢大佬指点 我晚上去想吧。 感谢!
by orzcyand1317 @ 2017-11-27 21:22:41


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