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  1. s = input()
  2.  
  3. max_count = 0
  4.  
  5. count = 0
  6.  
  7. for i in s:
  8.  
  9.     if i == '1':
  10.  
  11.         count += 1
  12.  
  13.         if count > max_count:
  14.  
  15.             max_count = count
  16.  
  17.     else:
  18.  
  19.         count = 0
  20.  
  21. print(max_count)
Success #stdin #stdout 0.03s 9356KB
comments (?)
stdin 
01001111011
111111
00000
1010101
1100111110
stdout 
4
https://ideone.com/UbdCwq
language:
Python 3 nbc (python 3.7.3)
created:
2 days ago
visibility:
public

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