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<lang rexx>/*REXX program does a list comprehension that will create N random integers, all unique.*/ |
<lang rexx>/*REXX program does a list comprehension that will create N random integers, all unique.*/ |
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parse arg n lim . /*obtain optional argument from the CL.*/ |
parse arg n lim . /*obtain optional argument from the CL.*/ |
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if n=='' | n=="," then n= |
if n=='' | n=="," then n= 1000 /*Not specified? Then use the default.*/ |
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if lim=='' | lim=="," then lim= 100000 /* " " " " " " */ |
if lim=='' | lim=="," then lim= 100000 /* " " " " " " */ |
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lim= min(lim, 1e5) /*limit the random range if necessary. */ |
lim= min(lim, 1e5) /*limit the random range if necessary. */ |
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randoms= /*will contain random list of integers.*/ |
randoms= /*will contain random list of integers.*/ |
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$= . |
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#= 0 /*counter used to ensure uniqueness. */ |
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do j=1 for n |
do j=1 for n /*gen a unique random integer for list.*/ |
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do until wordpos(?, @)==0 /*ensure " " " " " */ |
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do until wordpos($, randoms)==0 /*ensure " " " " " */ |
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$= random(0, lim) /*Not unique? Then obtain another int.*/ |
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end /*until*/ /*100K is the maximum range for RANDOM.*/ |
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randoms= $ randoms /*add an unique random integer to list.*/ |
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end /*j*/ |
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=={{header|Ruby}}== |
=={{header|Ruby}}== |
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