RosettaCodeData/Task/Catamorphism/Ring/catamorphism.ring

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n = list(10)
for i = 1 to 10
n[i] = i
next
see " +: " + cat(10,"+") + nl+
" -: " + cat(10,"-") + nl +
" *: " + cat(10,"*") + nl +
" /: " + cat(10,"/") + nl+
" ^: " + cat(10,"^") + nl +
"min: " + cat(10,"min") + nl+
"max: " + cat(10,"max") + nl+
"avg: " + cat(10,"avg") + nl +
"cat: " + cat(10,"cat") + nl
func cat count,op
cat = n[1]
cat2 = ""
for i = 2 to count
switch op
on "+" cat += n[i]
on "-" cat -= n[i]
on "*" cat *= n[i]
on "/" cat /= n[i]
on "^" cat ^= n[i]
on "max" cat = max(cat,n[i])
on "min" cat = min(cat,n[i])
on "avg" cat += n[i]
on "cat" cat2 += string(n[i])
off
next
if op = "avg" cat = cat / count ok
if op = "cat" decimals(0) cat = string(n[1])+cat2 ok
return cat