由于 std 使用了指针，而在官方评测时使用的为 32 位的操作系统，因此 std 在 QOJ 上评测时会 MLE。
为了避免因此造成的问题，空间限制从 256 MiB 提升到了 384 MiB。
QOJ.ac
QOJ
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Time Limit:
3 s
Memory Limit:
384 MB
Total points:
100
#1409. Bus Tour
统计
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