Problem:
Score : 500 points

Problem Statement

We have N bulbs arranged on a number line, numbered 1 to N from left to right.
Bulb i is at coordinate i.

Each bulb has a non-negative integer parameter called intensity.
When there is a bulb of intensity d at coordinate x, the bulb illuminates the segment from coordinate x-d-0.5 to x+d+0.5.
Initially, the intensity of Bulb i is A_i. We will now do the following operation K times in a row:

For each integer i between 1 and N (inclusive), let B_i be the number of bulbs illuminating coordinate i. Then, change the intensity of each bulb i to B_i.

Find the intensity of each bulb after the K operations.

Constraints

1 \leq N \leq 2 \times 10^5

1 \leq K \leq 2 \times 10^5

0 \leq A_i \leq N

Input

Input is given from Standard Input in the following format:

N K
A_1 A_2 \ldots A_N

Output

Print the intensity A{'}_i of each bulb i after the K operations to Standard Output in the following format:

A{'}_1 A{'}_2 \ldots A{'}_N

Sample Input 1

5 1
1 0 0 1 0

Sample Output 1

1 2 2 1 2

Initially, only Bulb 1 illuminates coordinate 1, so the intensity of Bulb 1 becomes 1 after the operation.
Similarly, the bulbs initially illuminating coordinate 2 are Bulb 1 and 2, so the intensity of Bulb 2 becomes 2.

Sample Input 2

5 2
1 0 0 1 0

Sample Output 2

3 3 4 4 3

Solution in PyPy3 (7.3.0) (judge verdict: Accepted)

from bisect import bisect_left
N, K = map(int, input().split())
As = list(map(int, input().split()))

if K >= 40:
    print(' '.join(map(str, [N]*N)))
    exit()

for _ in range(K):
    events = [[] for _ in range(N*2+2)]
    for i, a in enumerate(As):
        l = 2*(i-a)-1
        r = 2*(i+a)+1
        events[-1 if l < -1 else l].append(i)
        events[N*2 if r > N*2 else r].append(i)
    active = [0] * N
    L = 0
    nextAs = [0] * N
    for i in range(N):
        for k in events[2*i-1]:
            if active[k]:
                active[k] = 0
                L -= 1
            else:
                active[k] = 1
                L += 1
        nextAs[i] = L
    As = nextAs

print(' '.join(map(str, As)))