帮我挑出来的我一定关注(当然是第一个
by FCB_Yiyang2006✈ @ 2020-06-20 18:11:34
@[FCB_Yiyang2006✈](/user/149301) 您的add里面没取模
by KellyFrog @ 2020-06-20 18:13:11
~~您的取模被您吃了~~
by 火羽白日生 @ 2020-06-20 18:13:50
而且您的mul[]没有初始成1
by KellyFrog @ 2020-06-20 18:14:02
@[longer_name](/user/95103) 不取模应该珂以吧
by FCB_Yiyang2006✈ @ 2020-06-20 18:15:07
@[FCB_Yiyang2006✈](/user/149301) 过样例了
by KellyFrog @ 2020-06-20 18:16:00
```cpp
void build(int k,int l,int r)
{
mul[k] = 1; //您看这是什么？
if(l==r)
{
sum[k]=a[l];
return;
}
int mid=(l+r)/2;
build(k*2,l,mid);
build(k*2+1,mid+1,r);
sum[k]=sum[k*2]+sum[k*2+1];
}
```
by KellyFrog @ 2020-06-20 18:17:09
@[longer_name](/user/95103) 是没赋1，谢谢
by FCB_Yiyang2006✈ @ 2020-06-20 18:17:52
已关注
by FCB_Yiyang2006✈ @ 2020-06-20 18:18:08
~~qndmx~~
by Sampson_YW @ 2020-06-20 18:20:17