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高级

综合:订餐系统多维综合评估

未完成

示例

输入
solve()
期望输出
System evaluation:
  Cancel rate: 7.4% -> score=85.2
  Waste rate: 17.1% -> score=48.699999999999996
  Satisfaction: 3.51/5 -> score=70.2
  Subsidy efficiency: 57.6%
  OVERALL SCORE: 65.4/100 -> GOOD
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