Pythagorean quadruples: Difference between revisions
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=={{header|Phix}}== |
=={{header|Phix}}== |
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<lang Phix> |
<!--<lang Phix>(phixonline)--> |
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<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span> |
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N2 = N*N*2 |
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<span style="color: #008080;">constant</span> <span style="color: #000000;">N</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">2200</span><span style="color: #0000FF;">,</span> |
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sequence found = repeat(false,N), |
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<span style="color: #000000;">N2</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">N</span><span style="color: #0000FF;">*</span><span style="color: #000000;">N</span><span style="color: #0000FF;">*</span><span style="color: #000000;">2</span> |
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squares = repeat(false,N2) |
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<span style="color: #004080;">sequence</span> <span style="color: #000000;">found</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">repeat</span><span style="color: #0000FF;">(</span><span style="color: #004600;">false</span><span style="color: #0000FF;">,</span><span style="color: #000000;">N</span><span style="color: #0000FF;">),</span> |
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⚫ | |||
<span style="color: #000000;">squares</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">repeat</span><span style="color: #0000FF;">(</span><span style="color: #004600;">false</span><span style="color: #0000FF;">,</span><span style="color: #000000;">N2</span><span style="color: #0000FF;">)</span> |
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for a=1 to N do |
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⚫ | |||
integer a2 = a*a |
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<span style="color: #008080;">for</span> <span style="color: #000000;">a</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">N</span> <span style="color: #008080;">do</span> |
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for b=a to N do |
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<span style="color: #004080;">integer</span> <span style="color: #000000;">a2</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">a</span><span style="color: #0000FF;">*</span><span style="color: #000000;">a</span> |
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squares[a2+b*b] = true |
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<span style="color: #008080;">for</span> <span style="color: #000000;">b</span><span style="color: #0000FF;">=</span><span style="color: #000000;">a</span> <span style="color: #008080;">to</span> <span style="color: #000000;">N</span> <span style="color: #008080;">do</span> |
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end for |
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<span style="color: #000000;">squares</span><span style="color: #0000FF;">[</span><span style="color: #000000;">a2</span><span style="color: #0000FF;">+</span><span style="color: #000000;">b</span><span style="color: #0000FF;">*</span><span style="color: #000000;">b</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">true</span> |
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end for |
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<span style="color: #008080;">end</span> <span style="color: #008080;">for</span> |
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⚫ | |||
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span> |
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for d=1 to N do |
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⚫ | |||
integer d2 = d*d |
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<span style="color: #008080;">for</span> <span style="color: #000000;">d</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">N</span> <span style="color: #008080;">do</span> |
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for c=1 to d-1 do |
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<span style="color: #004080;">integer</span> <span style="color: #000000;">d2</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">d</span><span style="color: #0000FF;">*</span><span style="color: #000000;">d</span> |
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if squares[d2-c*c] then |
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<span style="color: #008080;">for</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">d</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span> <span style="color: #008080;">do</span> |
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found[d] = true |
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<span style="color: #008080;">if</span> <span style="color: #000000;">squares</span><span style="color: #0000FF;">[</span><span style="color: #000000;">d2</span><span style="color: #0000FF;">-</span><span style="color: #000000;">c</span><span style="color: #0000FF;">*</span><span style="color: #000000;">c</span><span style="color: #0000FF;">]</span> <span style="color: #008080;">then</span> |
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exit |
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<span style="color: #000000;">found</span><span style="color: #0000FF;">[</span><span style="color: #000000;">d</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">true</span> |
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end if |
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<span style="color: #008080;">exit</span> |
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end for |
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span> |
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end for |
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<span style="color: #008080;">end</span> <span style="color: #008080;">for</span> |
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<span style="color: #008080;">end</span> <span style="color: #008080;">for</span> |
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sequence res = {} |
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for i=1 to N do |
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<span style="color: #004080;">sequence</span> <span style="color: #000000;">res</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{}</span> |
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if not found[i] then res &= i end if |
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<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;">N</span> <span style="color: #008080;">do</span> |
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end for |
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<span style="color: #008080;">if</span> <span style="color: #008080;">not</span> <span style="color: #000000;">found</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]</span> <span style="color: #008080;">then</span> <span style="color: #000000;">res</span> <span style="color: #0000FF;">&=</span> <span style="color: #000000;">i</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span> |
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<span style="color: #008080;">end</span> <span style="color: #008080;">for</span> |
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<span style="color: #7060A8;">pp</span><span style="color: #0000FF;">(</span><span style="color: #000000;">res</span><span style="color: #0000FF;">)</span> |
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⚫ | |||
{{out}} |
{{out}} |
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<pre> |
<pre> |