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  1. #lang racket
  2. (define (lowest4 x y z c)
  3. (if
  4. (and(and(< x y)(< x z))(< x c))
  5. x
  6. (and(and(< y x)(< y z))(< y c))
  7. y
  8. (and(and(< z x)(< z y))(< z c))
  9. z
  10. ))
  11.  
Runtime error #stdin #stdout 0.03s 4176KB
stdin
Standard input is empty
stdout
Standard output is empty