a difficult homework

[LucaLuca]

hi, I want to vectorize it but it's so difficult


  c=magic(20)
  a=[ 20 41 45 50]
  b=[ 60 82 90 61]
  for i=1:length(a)
    x(i)=min(c(a(i):b(i)));
   endfor

i




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