Submission #20,824

20824

2026-01-09 15:16:56

python3

Accepted 50/50

59ms

4964 KiB

n, k = map(int, input().split())
fields = [int(i) for i in input().split()]
num = fields.count(1)
res = 0

for i in range(1, num-k+2):
	res += (num - i - k + 2)

print(res)

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	16ms	2868 KiB
		2	Accepted	0/0	16ms	3084 KiB
		3	Accepted	0/0	39ms	4960 KiB
		4	Accepted	2/2	16ms	2956 KiB
		5	Accepted	2/2	16ms	2924 KiB
		6	Accepted	2/2	16ms	3068 KiB
		7	Accepted	3/3	16ms	3064 KiB
		8	Accepted	3/3	17ms	2872 KiB
		9	Accepted	3/3	16ms	2864 KiB
		10	Accepted	2/2	14ms	3064 KiB
		11	Accepted	3/3	16ms	2868 KiB
		12	Accepted	2/2	14ms	2868 KiB
		13	Accepted	3/3	16ms	3064 KiB
		14	Accepted	2/2	35ms	4680 KiB
		15	Accepted	2/2	57ms	4556 KiB
		16	Accepted	3/3	45ms	4704 KiB
		17	Accepted	3/3	37ms	4660 KiB
		18	Accepted	3/3	54ms	4764 KiB
		19	Accepted	3/3	37ms	4944 KiB
		20	Accepted	3/3	37ms	4948 KiB
		21	Accepted	3/3	43ms	4776 KiB
		22	Accepted	3/3	59ms	4964 KiB