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  1. for i in range(int(input())):
  2. 	N,P=[int(x) for x in input().split()]
  3. 	S=[int(y) for y in input().split()]
  4. 	S.sort()
  5. 	t=S[P-1]
  6. 	ans=0
  7. 	for k in range(P-1):
  8. 		l=t-S[k]
  9. 		ans+=l
  10. 	print(ans)
  11.  
  12.  
Success #stdin #stdout 0.02s 9180KB
comments (?)
stdin
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3
4 3
3 1 9 100
6 2
5 5 1 2 3 4
5 5
7 7 1 7 7
stdout
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14
1
6
https://ideone.com/HI9vJT
language:
Python 3 (python  3.9.5)
created:
4 years ago
visibility:
public

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