```cpp
#include<bits/stdc++.h>
using namespace std;
const int M=1e4+5;
int n,sum;
int a[M];
int main()
{
cin>>n;
for(int i=1;i<=n;++i)
cin>>a[i];
for(int i=1;i<=n;++i)
for(int j=1;j<=i;++j)
if(a[j]>a[i])
++sum;
cout<<sum;
return 0;
}
```
by ____someone____ @ 2022-11-18 18:49:15
@[ranqimin](/user/779566) 第二层循环里的循环条件写错了
by ____someone____ @ 2022-11-18 18:49:53
@[ranqimin](/user/779566) 而且循环里的判断大于号小于号写反了
by ____someone____ @ 2022-11-18 18:51:31
@[____someone____](/user/658085) 谢谢
by xjzwyzmnd233 @ 2022-11-18 18:51:49