Bomb the base

In Chefland, there are $N$ houses numbered from $1$ to $N$, $i^{th}$ house has a defence system having strength $A_i$. Chef suspects a bomb drop on **one** of the houses very soon. A bomb with attack strength $X$ can destroy the $i^{th}$ house, if the defence system of the $i^{th}$ house $A_i$, is **strictly less** than $X$. Also, when the $i^{th}$ house is destroyed due to the bomb, all houses