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  1. for i in range(int(input())):
  2.     s=int(input())
  3.     v=list(map(int,input().split()))
  4.     for i in range(0,len(v)-1):
  5.         if((v[i]==v[i+1])):
  6.  
  7.             v[i]=-1
  8.  
  9.     p=v.count(-1)
  10.     print(len(v)-p)
Success #stdin #stdout 0.03s 9356KB
comments (?)
stdin
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4
1
5
2
1 1
3
1 2 3
4
2 1 2 2
stdout
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1
1
3
3
https://ideone.com/3jdLvR
language:
Python 3 (python  3.9.5)
created:
1 year ago
visibility:
public

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