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  1. n = int(input())
  2. freq=[0]*501  
  3. for _ in range(n):
  4.     x=int(input())
  5.     freq[x] += 1
  6. minFreq=n+1
  7. maxFreq=0
  8. minElem=-1
  9. maxElem=-1
  10. for i in range(501):
  11.     if freq[i] > 0:
  12.         if freq[i] < minFreq:
  13.             minFreq = freq[i]
  14.             minElem = i
  15.         if freq[i] > maxFreq:
  16.             maxFreq = freq[i]
  17.             maxElem = i
  18. print(minElem, minFreq)
  19. print(maxElem, maxFreq)
  20.  
Success #stdin #stdout 0.06s 14168KB
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stdin
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5
1 
1 
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3
stdout
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3 1
1 2
https://ideone.com/DFNMhA
language:
Python 3 (python  3.12)
created:
11 days ago
visibility:
public

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