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 Python (3.4.3) (judge verdict: Time Limit Exceeded)

import itertools

N, X, Y = list(map(int, input().split()))

ans = [0] * N
comb = list(itertools.combinations(range(1,N+1),2))


for i in range(len(comb)):
    if comb[i][0] <= X and comb[i][1] >= Y:
        k = comb[i][1] - Y + X - comb[i][0]  + 1
        ans[k] += 1
    elif comb[i][0] <= X:
        k = X - comb[i][0] + min(comb[i][1] - X, Y - comb[i][1]+1)
        ans[k] += 1
    elif comb[i][1] >= Y:
        k = comb[i][1] - Y + min(Y - comb[i][0], comb[i][0] - X + 1)
        ans[k] += 1
    else:
        k = min(comb[i][1] - comb[i][0], comb[i][0] - X + Y - comb[i][1] + 1)
        ans[k] += 1
for i in range(1,N):
    print(ans[i])