Problem:
Score : 400 points

Problem Statement

We have an undirected graph G with N vertices numbered 1 to N and N edges as follows:

For each i=1,2,...,N-1, there is an edge between Vertex i and Vertex i+1.

There is an edge between Vertex X and Vertex Y.

For each k=1,2,...,N-1, solve the problem below:

Find the number of pairs of integers (i,j) (1 \leq i < j \leq N) such that the shortest distance between Vertex i and Vertex j in G is k.

Constraints

3 \leq N \leq 2 \times 10^3

1 \leq X,Y \leq N

X+1 < Y

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N X Y

Output

For each k=1, 2, ..., N-1 in this order, print a line containing the answer to the problem.

Sample Input 1

5 2 4

Sample Output 1

5
4
1
0

The graph in this input is as follows:

There are five pairs (i,j) (1 \leq i < j \leq N) such that the shortest distance between Vertex i and Vertex j is 1: (1,2)\,,(2,3)\,,(2,4)\,,(3,4)\,,(4,5).

There are four pairs (i,j) (1 \leq i < j \leq N) such that the shortest distance between Vertex i and Vertex j is 2: (1,3)\,,(1,4)\,,(2,5)\,,(3,5).

There is one pair (i,j) (1 \leq i < j \leq N) such that the shortest distance between Vertex i and Vertex j is 3: (1,5).

There are no pairs (i,j) (1 \leq i < j \leq N) such that the shortest distance between Vertex i and Vertex j is 4.

Sample Input 2

3 1 3

Sample Output 2

3
0

The graph in this input is as follows:

Sample Input 3

7 3 7

Sample Output 3

7
8
4
2
0
0

Sample Input 4

10 4 8

Sample Output 4

10
12
10
8
4
1
0
0
0

Solution in Rust (1.42.0) (judge verdict: Accepted)

// This code is generated by [cargo-atcoder](https://github.com/tanakh/cargo-atcoder)
// Original source code:
/*
#![allow(unused_imports)]
use proconio::input;
use proconio::marker::*;
use std::collections::BTreeMap;
fn main() {
    input!(n: usize, x: Usize1, y: Usize1);

    let mut ds: BTreeMap<(usize, usize), usize> = BTreeMap::new();

    for a in 0..n {
        for b in a + 1..n {
            ds.insert((a, b), n);
        }
    }

    ds.insert((x, y), 1);
    for i in 0..n {
        if i == x {
            //
        } else if i < x {
            ds.entry((i, x))
                .and_modify(|e| *e = std::cmp::min(*e, x - i));
        } else {
            ds.entry((x, i))
                .and_modify(|e| *e = std::cmp::min(*e, i - x));
        };

        if i == y {
            //
        } else if i < y {
            ds.entry((i, y))
                .and_modify(|e| *e = std::cmp::min(*e, y - i));
        } else {
            ds.entry((y, i))
                .and_modify(|e| *e = std::cmp::min(*e, i - y));
        };
    }

    for a in 0..n {
        for b in a + 1..n {
            let mut min = b - a;

            let da = if a <= x { x - a } else { a - x };
            let db = if b <= y { y - b } else { b - y };
            min = std::cmp::min(min, da + db + 1);

            ds.entry((a, b)).and_modify(|e| *e = std::cmp::min(*e, min));
        }
    }

    let mut cnt: BTreeMap<usize, u32> = BTreeMap::new();
    for &v in ds.values() {
        *cnt.entry(v).or_default() += 1;
    }

    for i in 1..n {
        let c = cnt.entry(i).or_default();
        println!("{}", c);
    }
}
*/

fn main() {
    let exe = "/tmp/binE95AF0F8";
    std::io::Write::write_all(&mut std::fs::File::create(exe).unwrap(), &decode(BIN)).unwrap();
    std::fs::set_permissions(exe, std::os::unix::fs::PermissionsExt::from_mode(0o755)).unwrap();
    std::process::exit(std::process::Command::new(exe).status().unwrap().code().unwrap())
}

fn decode(v: &str) -> Vec<u8> {
    let mut ret = vec![];
    let mut buf = 0;
    let mut tbl = vec![64; 256];
    for i in 0..64 { tbl[TBL[i] as usize] = i as u8; }
    for (i, c) in v.bytes().filter_map(|c| { let c = tbl[c as usize]; if c < 64 { Some(c) } else { None } }).enumerate() {
        match i % 4 {
            0 => buf = c << 2,
            1 => { ret.push(buf | c >> 4); buf = c << 4; }
            2 => { ret.push(buf | c >> 2); buf = c << 6; }
            3 => ret.push(buf | c),
            _ => unreachable!(),
        }
    }
    ret
}

const TBL: &'static [u8] = b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
const BIN: &'static str = "<base64-encoded ELF executable removed>";