我的提交一直是wa
#include <iostream>
#include <algorithm>
using namespace std;
int n,m;
const int N=103;
int a[N];
int main()
{
cin>>n;
for(int i=0;i<n;i++) cin>>a[i];
sort(a,a+n);
int count=0;
for(int i=0;i<n;i++)
{
if(count) cout<<" ";
cout<<a[i];
count++;
}
cin>>m;
cout<<endl;
count=0;
while(m--)
{
int x;
cin>>x;
int l=0,r=n-1;
while(l<r)
{
int mid=(l+r)/2;
if(a[mid]>=x) r=mid;
else l=mid+1;
}
if(count) cout<<" ";
if(a[l]!=x) cout<<0;
else cout<<r+1;
count++;
}
cout<<endl;
return 0;
}