Score : $700$ points
Snuke has decided to play a game, where the player runs a railway company. There are $M+1$ stations on Snuke Line, numbered $0$ through $M$. A train on Snuke Line stops at station $0$ and every $d$-th station thereafter, where $d$ is a predetermined constant for each train. For example, if $d = 3$, the train stops at station $0$, $3$, $6$, $9$, and so forth.
There are $N$ kinds of souvenirs sold in areas around Snuke Line. The $i$-th kind of souvenirs can be purchased when the train stops at one of the following stations: stations $l_i$, $l_i+1$, $l_i+2$, $...$, $r_i$.
There are $M$ values of $d$, the interval between two stops, for trains on Snuke Line: $1$, $2$, $3$, $...$, $M$. For each of these $M$ values, find the number of the kinds of souvenirs that can be purchased if one takes a train with that value of $d$ at station $0$. Here, assume that it is not allowed to change trains.
The input is given from Standard Input in the following format:
$N$ $M$ $l_1$ $r_1$ $:$ $l_{N}$ $r_{N}$
Print the answer in $M$ lines. The $i$-th line should contain the maximum number of the kinds of souvenirs that can be purchased if one takes a train stopping every $i$-th station.
3 3 1 2 2 3 3 3
3 2 2
7 9 1 7 5 9 5 7 5 9 1 1 6 8 3 4
7 6 6 5 4 5 5 3 2