USACO13 - 题库

ID	题目显示标签隐藏标签	AC / 尝试	难度
3567	3567 [USACO13FEB] Message Relay G USACO13	0 / 0	(无)
3569	3569 [USACO13OPEN] Cow Crossings G USACO13	0 / 0	(无)
3571	3571 [USACO13OPEN] Perimeter G USACO13	0 / 0	(无)
3573	3573 [USACO13OPEN] Cow Race G USACO13	0 / 0	(无)
3667	3667 [USACO13FEB] Message Relay G USACO13	0 / 0	(无)
3669	3669 [USACO13OPEN] Cow Crossings G USACO13	0 / 0	(无)
3671	3671 [USACO13OPEN] Perimeter G USACO13	0 / 0	(无)
3673	3673 [USACO13OPEN] Cow Race G USACO13	0 / 0	(无)
4930	4930 [USACO13FEB] Message Relay G USACO13	0 / 0	(无)
4931	4931 [USACO13OPEN] Cow Crossings G USACO13	0 / 0	(无)
4932	4932 [USACO13OPEN] Perimeter G USACO13	0 / 0	(无)
4933	4933 [USACO13OPEN] Cow Race G USACO13	0 / 0	(无)

根据当前过滤条件随机选择一道题

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