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  1. if __name__ == "__main__":
  2.     s = v = 0
  3.     step = int(input())
  4.     str = input()
  5.  
  6.     for idx,val in enumerate(str):
  7.         if val == "D":
  8.             s = s-1
  9.         if val == "U":
  10.             s = s+1
  11.         if idx > 0 and s == 0 and val == 'U':
  12.             v = v+1
  13.     print(v)
Success #stdin #stdout 0.01s 27712KB
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stdin
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8
UDDDUDUU
stdout
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1
https://ideone.com/KhYN4P
language:
Python 3 (python  3.12)
created:
5 years ago
visibility:
public

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