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  1. import random
  2.  
  3. def generate():
  4. r = random.randrange(256)
  5. while r >= 255: r = random.randrange(256)
  6. return r%5+1000
  7.  
  8. freq=dict()
  9.  
  10. for _ in range(1000):
  11. key = generate()
  12. freq[key] = freq[key]+1 if key in freq else 0
  13. print(freq)
Success #stdin #stdout 0.02s 37024KB
stdin
Standard input is empty
stdout
{1000: 225, 1001: 187, 1002: 204, 1003: 190, 1004: 189}