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Non-continuous subsequences: Difference between revisions

Non-continuous subsequences (view source)

Revision as of 19:36, 24 February 2022

7,138 bytes added ,  2 years ago
m
→‎{{header|Phix}}: added syntax colouring, marked p2js compatible, some minor simplifications
(Added Quackery.)
m (→‎{{header|Phix}}: added syntax colouring, marked p2js compatible, some minor simplifications)
Line 1,846:
Straightforward recursive implementation, the only minor trick is that a gap does not
mean non-contiguous until you actually take something later.<br>
Counts non-contiguous subsequences of sequences of length 1..20 in justunder overhalf 0.5a secondssecond
<!--<lang Phix>bool countonly = false(phixonline)-->
<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span>
integer count = 0
<span style="color: #004080;">integer</span> <span style="color: #000000;">count</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span>
 
procedure ncs(sequence rest, integer ri=0, sequence taken={}, bool contig=false, bool gap=false)
<span style="color: #008080;">procedure</span> <span style="color: #000000;">ncs</span><span style="color: #0000FF;">(</span><span style="color: #004080;">sequence</span> <span style="color: #000000;">rest</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">object</span> <span style="color: #000000;">taken</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">integer</span> <span style="color: #000000;">ri</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">bool</span> <span style="color: #000000;">contig</span><span style="color: #0000FF;">=</span><span style="color: #004600;">false</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">bool</span> <span style="color: #000000;">gap</span><span style="color: #0000FF;">=</span><span style="color: #004600;">false</span><span style="color: #0000FF;">)</span>
if ri>=length(rest) then
<span style="color: #008080;">if</span> <span style="color: #000000;">ri</span><span style="color: #0000FF;">>=</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">rest</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span>
if contig then
<span style="color: #008080;">if</span> <span style="color: #000000;">contig</span> <span style="color: #008080;">then</span>
if countonly then
<span style="color: #008080;">if</span> <span style="color: #004080;">integer</span><span style="color: #0000FF;">(</span><span style="color: #000000;">taken</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span>
count += 1
<span style="color: #000000;">count</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
else
<span style="color: ?taken#008080;">else</span>
<span style="color: #0000FF;">?</span><span style="color: #000000;">taken</span>
end if
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
end if
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
else
<span style="color: #008080;">else</span>
ri += 1
<span style="color: #000000;">ri</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
ncs(rest,ri,taken&rest[ri],gap,gap)
<span style="color: #000000;">ncs</span><span style="color: #0000FF;">(</span><span style="color: #000000;">rest</span><span style="color: #0000FF;">,</span><span style="color: #008080;">iff</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span><span style="color: #0000FF;">(</span><span style="color: #000000;">taken</span><span style="color: #0000FF;">)?</span><span style="color: #000000;">taken</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">:</span><span style="color: #7060A8;">deep_copy</span><span style="color: #0000FF;">(</span><span style="color: #000000;">taken</span><span style="color: #0000FF;">)&</span><span style="color: #000000;">rest</span><span style="color: #0000FF;">[</span><span style="color: #000000;">ri</span><span style="color: #0000FF;">]),</span><span style="color: #000000;">ri</span><span style="color: #0000FF;">,</span><span style="color: #000000;">gap</span><span style="color: #0000FF;">,</span><span style="color: #000000;">gap</span><span style="color: #0000FF;">)</span>
ncs(rest,ri,taken,contig,length(taken)!=0)
<span style="color: #000000;">ncs</span><span style="color: #0000FF;">(</span><span style="color: #000000;">rest</span><span style="color: #0000FF;">,</span><span style="color: #000000;">taken</span><span style="color: #0000FF;">,</span><span style="color: #000000;">ri</span><span style="color: #0000FF;">,</span><span style="color: #000000;">contig</span><span style="color: #0000FF;">,</span><span style="color: #008080;">iff</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span><span style="color: #0000FF;">(</span><span style="color: #000000;">taken</span><span style="color: #0000FF;">)?</span><span style="color: #000000;">taken</span><span style="color: #0000FF;">!=</span><span style="color: #000000;">0</span><span style="color: #0000FF;">:</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">taken</span><span style="color: #0000FF;">)!=</span><span style="color: #000000;">0</span><span style="color: #0000FF;">))</span>
end if
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
end procedure
<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span>
 
ncs({1,2,3})
<span style="color: #000000;">ncs</span><span style="color: #0000FF;">({</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span><span style="color: #000000;">3</span><span style="color: #0000FF;">},{})</span>
?"==="
<span style="color: #0000FF;">?</span><span style="color: #008000;">"==="</span>
ncs({1,2,3,4})
<span style="color: #000000;">ncs</span><span style="color: #0000FF;">({</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span><span style="color: #000000;">3</span><span style="color: #0000FF;">,</span><span style="color: #000000;">4</span><span style="color: #0000FF;">},{})</span>
?"==="
<span style="color: #0000FF;">?</span><span style="color: #008000;">"==="</span>
countonly = true
<span style="color: #004080;">atom</span> <span style="color: #000000;">t0</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">time</span><span style="color: #0000FF;">()</span>
atom t0 = time()
<span style="color: #004080;">sequence</span> <span style="color: #000000;">s</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{}</span>
sequence s = {}
<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">20</span> <span style="color: #008080;">do</span>
for i=1 to 20 do
<span style="color: #000000;">count</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span>
count = 0
<span style="color: #000000;">ncs</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">tagset</span><span style="color: #0000FF;">(</span><span style="color: #000000;">i</span><span style="color: #0000FF;">),</span><span style="color: #000000;">0</span><span style="color: #0000FF;">)</span>
ncs(tagset(i))
<span style="color: #000000;">s</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">append</span><span style="color: #0000FF;">(</span><span style="color: #000000;">s</span><span style="color: #0000FF;">,</span><span style="color: #000000;">count</span><span style="color: #0000FF;">)</span>
s = append(s,count)
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
end for
<span style="color: #0000FF;">?</span><span style="color: #7060A8;">elapsed</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">time</span><span style="color: #0000FF;">()-</span><span style="color: #000000;">t0</span><span style="color: #0000FF;">)</span>
?time()-t0
<span style="color: #7060A8;">pp</span><span style="color: #0000FF;">(</span><span style="color: #000000;">s</span><span style="color: #0000FF;">)</span>
?s<!--</lang>-->
{{out}}
<pre>
Line 1,890 ⟶ 1,891:
{2,4}
"==="
"0.5153s"
{0,0,1,5,16,42,99,219,466,968,1981,4017,8100,16278,32647,65399,130918,261972,524097,1048365}
</pre>
Petelomax
7,822

edits

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