RosettaCodeData/Task/Combinations/XBasic/combinations.basic

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PROGRAM "Combinations"
VERSION "0.0000"
DECLARE FUNCTION Entry ()
DECLARE FUNCTION iterate (curr$, start, stp, depth)
FUNCTION Entry ()
n = 3
m = 5
outstr$ = ""
iterate(outstr$, 0, m - 1, n - 1)
END FUNCTION
FUNCTION iterate (curr$, start, stp, depth)
FOR i = start TO stp
IF depth = 0 THEN PRINT curr$ + " " + STR$(i)
iterate(curr$ + " " + STR$(i), i + 1, stp, depth - 1)
NEXT i
RETURN
END FUNCTION
END PROGRAM