Proper divisors: Difference between revisions
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m (→version 2: updated the output section.) |
m (→version 3: added whitespace.) |
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<lang rexx>/*REXX program finds proper divisors (and count) of integer ranges; finds the max count.*/ |
<lang rexx>/*REXX program finds proper divisors (and count) of integer ranges; finds the max count.*/ |
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parse arg bot top inc range xtra /*obtain optional arguments from the CL*/ |
parse arg bot top inc range xtra /*obtain optional arguments from the CL*/ |
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if bot=='' | bot=="," then bot= |
if bot=='' | bot=="," then bot= 1 /*Not specified? Then use the default.*/ |
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if top=='' | top=="," then top= |
if top=='' | top=="," then top= 10 /* " " " " " " */ |
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if inc=='' | inc=="," then inc= |
if inc=='' | inc=="," then inc= 1 /* " " " " " " */ |
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if range=='' | range=="," then range= |
if range=='' | range=="," then range= 20000 /* " " " " " " */ |
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w= max( length(top), length(bot), length(range)) /*determine the biggest number of these*/ |
w= max( length(top), length(bot), length(range)) /*determine the biggest number of these*/ |
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numeric digits max(9, w + 1) /*have enough digits for // operator.*/ |
numeric digits max(9, w + 1) /*have enough digits for // operator.*/ |
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