Buggy python submission (verdict: Time Limit Exceeded):
def main():
    import sys
    input = sys.stdin.readline
    N, K = map(int, input().split())
    A = list(map(int, input().split()))
    finish = [False] * N
    for i in range(K):
        start = [0] * N
        end = [0] * N
        for j in range(N):
            if j - A[j] < 0:
                start[0] += 1
            else:
                start[j-A[j]] += 1
            if j + A[j] >= N:
                pass
            else:
                end[j+A[j]] += 1
        tmp = start[0]
        A[0] = tmp
        for j in range(1, N):
            tmp += start[j]
            tmp -= end[j-1]
            A[j] = tmp
            if tmp >= N:
                finish[j] = True
        if False not in finish:
            break
    print(" ".join(map(str, A)))

if __name__ == '__main__':
    main()

Fixed submission:
def main():
    import sys
    input = sys.stdin.readline
    N, K = map(int, input().split())
    A = list(map(int, input().split()))
    for i in range(K):
        start = [0] * N
        end = [0] * N
        for j in range(N):
            if j - A[j] < 0:
                start[0] += 1
            else:
                start[j-A[j]] += 1
            if j + A[j] >= N:
                pass
            else:
                end[j+A[j]] += 1
        tmp = start[0]
        A[0] = tmp
        tmp_min = tmp
        for j in range(1, N):
            tmp += start[j]
            tmp -= end[j-1]
            A[j] = tmp
            tmp_min = min(tmp_min, tmp)
        if tmp_min >= N:
            break
    print(" ".join(map(str, A)))

if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    import sys
    input = sys.stdin.readline
    N, K = map(int, input().split())
    A = list(map(int, input().split()))
    finish = [False] * N
    for i in range(K):
        start = [0] * N
        end = [0] * N
        for j in range(N):
            if j - A[j] < 0:
                start[0] += 1
            else:
                start[j-A[j]] += 1
            if j + A[j] >= N:
                pass
            else:
                end[j+A[j]] += 1
        tmp = start[0]
        A[0] = tmp
        for j in range(1, N):
            tmp += start[j]
            tmp -= end[j-1]
            A[j] = tmp
            if tmp >= N:
                finish[j] = True
        if False not in finish:
            break
    print(" ".join(map(str, A)))

if __name__ == '__main__':
    main()

Fixed submission:
def main():
    import sys
    input = sys.stdin.readline
    N, K = map(int, input().split())
    A = list(map(int, input().split()))
    for i in range(K):
        start = [0] * N
        end = [0] * N
        for j in range(N):
            if j - A[j] < 0:
                start[0] += 1
            else:
                start[j-A[j]] += 1
            if j + A[j] >= N:
                pass
            else:
                end[j+A[j]] += 1
        tmp = start[0]
        A[0] = tmp
        tmp_min = tmp
        for j in range(1, N):
            tmp += start[j]
            tmp -= end[j-1]
            A[j] = tmp
            tmp_min = min(tmp_min, tmp)
        if tmp_min >= N:
            break
    print(" ".join(map(str, A)))

if __name__ == '__main__':
    main()