```cpp
#include <bits/stdc++.h>
int n,x;
using namespace std;
int a[3000001],s[3000001],id[3000001],top;
int main(){
scanf("%d",&n);
for(int i=1;i<=n;++i){
scanf("%d",&a[i]);
}
for(int i=n;i>=1;i--){
while(top && a[s[top]]<=a[i]) top--;
if(!top) id[i]=0;
else id[i]=s[top];
s[++top]=i;
}
for(int i=1;i<=n;i++) printf("%d ",id[i]);
}
```
1. a 数组小了
2. 有一个地方你写错了自己看一下
by Meteor_ @ 2023-09-24 16:08:55
@[blackmonkey](/user/636008)
by Meteor_ @ 2023-09-24 16:09:13
@[Meteor_](/user/756594)
以关，但没看出来哪写错了，还请大佬指点
by blackmonkey @ 2023-09-24 16:50:03
你看看你while里面写了点什么
算了再提示一点吧：($a[s[top]<=a[i]]$ 这是你写的)
by Meteor_ @ 2023-09-24 16:51:47
@[blackmonkey](/user/636008)
by Meteor_ @ 2023-09-24 16:52:08
@[blackmonkey](/user/636008) ？懂了吗
by Meteor_ @ 2023-09-24 17:24:27
@[Meteor_](/user/756594)
懂了懂了谢谢
by blackmonkey @ 2023-09-25 18:58:08