@[ly618x](/user/534349) sum[n]=sum[n-1];?
by ImposterAnYu @ 2023-07-13 09:00:08
@[owo_ImposterAnYu_owo](/user/510555) 这个是我怕他出界才赋的值,刚才删掉试了一下还是64分
by ly618x @ 2023-07-13 09:05:32
@[ly618x](/user/534349) 那你为什么要把sum[n]拿出来单独算呢,不太理解
by ImposterAnYu @ 2023-07-13 09:21:19
@[owo_ImposterAnYu_owo](/user/510555) 题目里有n-1个点,所以前缀和只要算到n-1,这个操作也没啥子用
by ly618x @ 2023-07-13 09:32:21
@[ly618x](/user/534349) 好像也对
所以是不是您的ans的初始值不够大呢,毕竟最坏情况下答案可能为 $10^{18}$
by ImposterAnYu @ 2023-07-13 09:35:23
@[owo_ImposterAnYu_owo](/user/510555) 而且我的答案WA的点都显示read 0或者read 1
by ly618x @ 2023-07-13 09:39:01
@[ly618x](/user/534349) 你把ans的初始值开大点,然后把sum[n]=sum[n-1]删掉
by ImposterAnYu @ 2023-07-13 09:41:55
@[owo_ImposterAnYu_owo](/user/510555) ans=1000000000000000005;
这样够了吗
by ly618x @ 2023-07-13 09:44:28
@[owo_ImposterAnYu_owo](/user/510555)
[记录](https://www.luogu.com.cn/record/115204296)
92分!!!!!
by ly618x @ 2023-07-13 09:45:39
@[owo_ImposterAnYu_owo](/user/510555) RE了最后两个点
by ly618x @ 2023-07-13 09:47:50