没过样例求条

//998244353
#include<bits/stdc++.h>
#define itn int
using namespace std;
const int N=1e6+10;
int n,a[N],q,ls;
inline int find(int num)
{
	int l=1,r=n;
	while(l+1<r)
	{
		int mid=(l+r)/2;
		if(a[mid]>=num)
		{
			r=mid;
		}
		else
		{
			l=mid;
		}
	}
	return r;
}

int main()
{
	cin>>n>>q;
	for(int i=1;i<=n;i++)
	{
		cin>>a[i];
	}
	while(q--)
	{
		cin>>ls;
		if(a[find(ls)]==ls)
		{
			cout<<find(ls)<<" ";
		}
		else
		{
			cout<<"-1 ";
		}
	}
}