Largest int from concatenated ints: Difference between revisions
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m (→{{header|REXX}}: added comments in the REXX section header. -- ~~~~) |
m (→{{header|REXX}}: added/changed comments and whitespace, changed indentation. -- ~~~~) |
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* the list isn't null |
* the list isn't null |
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<lang rexx>/*REXX pgm constructs largest integer from a list using concatenation.*/ |
<lang rexx>/*REXX pgm constructs largest integer from a list using concatenation.*/ |
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@. = /*used to signify end-of-lists. */ |
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@. = |
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@.1 = '{1, 34, 3, 98, 9, 76, 45, 4}' |
@.1 = '{1, 34, 3, 98, 9, 76, 45, 4}' |
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@.2 = '{54, 546, 548, 60}' |
@.2 = '{54, 546, 548, 60}' |
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/* [↓] process all the lists. */ |
/* [↓] process all the lists. */ |
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do j=1 while @.j\==''; $= /*keep truckin' until exausted. */ |
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z=space(translate(@.j, , '])},{([')) /*perform some scrubbing on list.*/ |
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do while z\=='' /*examine each number in the list*/ |
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big=word(z,1); index=1 /*assume first number is biggest.*/ |
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do k=2 to words(z); x=word(z,k) /*get an integer.*/ |
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L=max(length(big), length(x)) /*get max length.*/ |
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if left(x,L,left(x,1)) << left(big,L,left(big,1)) then iterate |
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big=x; index=k /*we found a new biggie (& index)*/ |
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end /*k*/ |
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z=strip(delword(z, index, 1)) /*remove the "maximum" from list*/ |
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$=$ || big /*append the "maximum" number. */ |
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end /*while*/ |
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say right($,30) ' max for: ' @.j /*show the "max" integer and list*/ |
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end /*j*/ |
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/*stick a fork in it, we're done.*/</lang> |
/*stick a fork in it, we're done.*/</lang> |
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'''output''' |
'''output''' |
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<pre> |
<pre> |
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998764543431 max for: {1, 34, 3, 98, 9, 76, 45, 4} |
998764543431 max for: {1, 34, 3, 98, 9, 76, 45, 4} |
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