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  1. import sys;
  2.  
  3. a = [raw_input() for i in xrange(input())];
  4.  
  5. pos = 0;
  6. while len(set(x[0:pos] for x in a)) < 2:
  7.     pos += 1;
  8. print pos - 1;
  9.  
  10.  
  11.  
  12.  
  13.  
  14. import sys;
  15.  
  16. a = [raw_input() for i in xrange(input())];
  17.  
  18. pos = 0;
  19. while True:
  20.     ok = True;
  21.     c = a[0][pos];
  22.     for i in xrange(len(a)):
  23.         if a[i][pos] != c:
  24.             ok = False;
  25.     if not ok :
  26.         break;
  27.     pos += 1;
  28. print pos;
  29.  
  30.  
Runtime error #stdin #stdout 0.02s 4676KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
https://ideone.com/mbx4Z
language:
Python (cpython 2.7.16)
created:
14 years ago
visibility:
public

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