Universal Online Judge

UOJ

Goodbye Renyin

#	题目
A	新年的平衡兔环
B	新年的搜索记录
C	新年的双区间操作
D	新年的传火仪式
E	新年的找对

比赛通知

标题	内容	时间
reminder	please note that in problem C, a[i],x,y,v may be negative!	2023-01-20 14:41:18
提醒	C题中a[i],x,y,v均有可能是负数，请选手注意	2023-01-20 14:40:06
English Statements Update	For problem C, "replace each $a_i$ with $\max(a_i, y)$ for $i \in [l'_i, r'_i]$" should be "replace each $a_k$ with $\max(a_k, y)$ for $k \in [l'_i, r'_i]$".	2023-01-20 14:00:55
English Statements Update	For problem A, the first line of the input contains three integers $n, r, R$. For problem C, the condition \"$x_i \leq \max{l_i \leq k \leq r_i} a_i$\" should be \"$x_i \leq \max_{l_i \leq k \leq r_i} a_k$\". For problem D, subtask 5 is worth $30$ points. For problem E, the constraint should be $n \leq 300$ instead of $n \leq 400$. (Note: you may check the Chinese statements or the problem attachments for sample tests.)	2023-01-20 13:57:00
English Problem Statements	https://img.uoj.ac/download/d87b4c4410/gdb-renyin-statement.pdf	2023-01-20 12:51:02

提问

所有人的提问

提问者	提问时间	问题
Rubikun	2023-01-20 14:35:19	problem C subtask3 In English l=r,l'=r', but in Chinese l=r=l'=r'. which one is correct? 回复：Sorry, it should be l=r=l'=r'.
ridiculos	2023-01-20 14:25:53	E题路径不交是点不交还是边不交回复：路径之间点不交
maoweishou	2023-01-20 13:27:28	T1 输入格式中写ai是正整数，但数据范围中写ai可能等于0，所以ai保证是正整数吗回复：不保证。a[i]确实可能是0。
20333333333	2023-01-20 13:02:51	T1是否满足存在一个数，去掉它后答案为YES 回复：不保证。粉免可能不止一个。

比赛已结束

此次比赛为OI赛制。

注意：比赛时只显示测样例的结果。

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比赛资料

公告题解