last occurence

#include <iostream>
using namespace std;

int main()
{
		int n;
		cin>>n;
      
	int m;
	cin>>m;
	int arr[n];
	int i;
	for( i=0;i<n;i++)
	{
		cin>>arr[i];
	}
	for(i=0;i<n;i++)
	{
		if(arr[i]==m)
		{
			cout<<i<<endl;
		}
	}
	
   
    return 0;
}

does anything seems wrong in this code?? because its giving me wrong answer