I have done above code but it is not giving expected output

#1

Here is my code:-

#2

hey @priya_Jain

void printAtLevelK(node *root,int k)

{

    if(root==NULL)

    {

        return;

    }

    if(k==0) //k==0 here instead of k==1

    {

        cout<<root->data<<" ";

        return;

    }

    printAtLevelK(root->left,k-1);

    printAtLevelK(root->right,k-1);

    return;

}

Also your input was incorrect to built tree ,it should be :

1 2 4 6 -1 -1 7 10 -1 -1 11 -1 -1 5 8 -1 -1 9 -1 -1 3 -1 -1