RosettaCodeData/Task/Quickselect-algorithm/J/quickselect-algorithm-1.j
2023-07-01 13:44:08 -04:00

14 lines
198 B
Text

quickselect=:4 :0
if. 0=#y do. _ return. end.
n=.?#y
m=.n{y
if. x < m do.
x quickselect (m>y)#y
else.
if. x > m do.
x quickselect (m<y)#y
else.
m
end.
end.
)