Score : $600$ points
There are $N$ Christmas trees in the two-dimensional plane. The $i$-th tree is at coordinates $(x_i,y_i)$.
Answer the following $Q$ queries.
Query $i$: What is the distance between $(a_i,b_i)$ and the $K_i$-th nearest Christmas tree to that point, measured in Manhattan distance?
Input is given from Standard Input in the following format:
$N$ $x_1$ $y_1$ $\vdots$ $x_N$ $y_N$ $Q$ $a_1$ $b_1$ $K_1$ $\vdots$ $a_Q$ $b_Q$ $K_Q$
Print $Q$ lines.
The $i$-th line should contain the answer to Query $i$.
4 3 3 4 6 7 4 2 5 6 3 5 1 3 5 2 3 5 3 3 5 4 100 200 3 300 200 1
1 2 2 5 293 489
The distances from $(3,5)$ to the $1$-st, $2$-nd, $3$-rd, $4$-th trees to that point are $2$, $2$, $5$, $1$, respectively.
Thus, the answers to the first four queries are $1$, $2$, $2$, $5$, respectively.