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  1. test = int(input())
  2. for t in range(test):
  3. 	n , k = map(int,input().split())
  4. 	s = input()
  5. 	lastone = -1
  6. 	count = 0
  7.  
  8. 	for i in range(n):
  9. 		if int(s[i])==1:
  10. 			if lastone>=max(0,i-k) and lastone<=i-1:
  11. 				continue
  12.  
  13. 			else:
  14. 				count+=1
  15. 			lastone = i
  16. 		else:
  17. 			continue
  18. 	print(count)
  19.  
  20.  
  21.  
Success #stdin #stdout 0.08s 14124KB
comments (?)
stdin
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9
2 2
11
6 6
100001
5 3
10000
7 2
1010101
7 4
0000001
3 3
010
3 2
011
7 4
1001001
8 3
00000000
stdout
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1
1
1
2
1
1
1
2
0
https://ideone.com/PlJ4P5
language:
Python 3 (python  3.12)
created:
22 hours ago
visibility:
public

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