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 Python (3.8.2) (judge verdict: Time Limit Exceeded)

from itertools import accumulate

def main():
    n, k = map(int, input().strip().split())
    A = list(map(int, input().strip().split()))
    
    # for _ in range(min(k,int(math.log(n,2)))):
    
    
    def solve():
        nonlocal A
        for _ in range(k):
            b=[0]*(n+1)
            
            for i,v in enumerate(A):
                b[max(0,i-v)]+=1
                b[min(n,i+v+1)]-=1
            
            # update ans
            # cnt=0
            # for i in range(1,n):
            #     b[i]+=b[i-1]
            A=[*accumulate(b)][:-1]
            
            if min(A)==n:
                break
        print(*A)
    solve()

if '__main__' == __name__:
    main()