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 (1.15.1) (judge verdict: Accepted)

// This code is generated by [cargo-atcoder](https://github.com/tanakh/cargo-atcoder)
// Original source code:
/*
use proconio::input;

pub struct Graph {
  graph: Vec<Vec<usize>>,
  v: usize,
}

impl Graph {
  pub fn new(edges: &[(usize, usize)], v: usize) -> Self {
    let mut graph = vec![Vec::new(); v];
    for &(u, v) in edges {
      graph[u].push(v);
      graph[v].push(u);
    }
    Self { graph, v }
  }

  pub fn new_directed(edges: &[(usize, usize)], v: usize) -> Self {
    let mut graph = vec![Vec::new(); v];
    for &(u, v) in edges {
      graph[u].push(v);
    }
    Self { graph, v }
  }

  pub fn shortest_path(&self, start: usize) -> Vec<usize> {
    let mut visited = std::collections::HashSet::new();
    let mut d = vec![std::usize::MAX; self.v];
    let mut que = std::collections::VecDeque::new();
    d[start] = 0;
    visited.insert(start);
    que.push_back(start);
    while let Some(u) = que.pop_front() {
      for &v in &self.graph[u] {
        if visited.contains(&v) {
          continue;
        }
        visited.insert(v);
        let new_cost = d[u] + 1;
        d[v] = new_cost;
        que.push_back(v);
      }
    }
    d
  }
}

fn main() {
  input! {
    n: usize, x: usize, y: usize
  };

  let mut edges = Vec::new();
  for i in 0..(n - 1) {
    edges.push((i, i + 1));
  }
  edges.push((x - 1, y - 1));

  let graph = Graph::new(&edges, n);
  let mut table = std::collections::HashMap::new();
  for i in 0..n {
    for c in graph.shortest_path(i) {
      let x = table.entry(c).or_insert(0);
      *x += 1;
    }
  }
  for i in 1..n {
    let x = table.get(&i).unwrap_or(&0) / 2;
    println!("{}", x);
  }
}
*/

fn main() {
    let exe = "/tmp/bin8072C35F";
    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>";