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<div class="highlight" style="background: #f8f8f8"><pre style="line-height: 125%"><div id="lc1"><span style="color: #408080; font-style: italic">#!/usr/bin/env python</span>
</div><div id="lc2">
</div><div id="lc3">task <span style="color: #666666">=</span> <span style="color: #BA2121">&quot;&quot;&quot;The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.</span>
</div><div id="lc4">
</div><div id="lc5"><span style="color: #BA2121">Find the sum of all the primes below two million.&quot;&quot;&quot;</span>
</div><div id="lc6">__doc__ <span style="color: #666666">=</span> task
</div><div id="lc7">answer <span style="color: #666666">=</span> <span style="color: #666666">142913828922</span>
</div><div id="lc8">solved <span style="color: #666666">=</span> <span style="color: #008000">False</span>
</div><div id="lc9">approximate_time_to_finish <span style="color: #666666">=</span> <span style="color: #666666">60</span>
</div><div id="lc10">
</div><div id="lc11"><span style="color: #008000; font-weight: bold">from</span> <span style="color: #0000FF; font-weight: bold">euler</span> <span style="color: #008000; font-weight: bold">import</span> atkins_sieve <span style="color: #008000; font-weight: bold">as</span> primes
</div><div id="lc12"><span style="color: #008000; font-weight: bold">from</span> <span style="color: #0000FF; font-weight: bold">euler</span> <span style="color: #008000; font-weight: bold">import</span> print_status, task_main
</div><div id="lc13"><span style="color: #008000; font-weight: bold">from</span> <span style="color: #0000FF; font-weight: bold">operator</span> <span style="color: #008000; font-weight: bold">import</span> truediv, mul
</div><div id="lc14"><span style="color: #008000; font-weight: bold">from</span> <span style="color: #0000FF; font-weight: bold">time</span> <span style="color: #008000; font-weight: bold">import</span> time
</div><div id="lc15">
</div><div id="lc16"><span style="color: #008000; font-weight: bold">def</span> <span style="color: #0000FF">solve</span>(limit<span style="color: #666666">=2*10**6</span>, step<span style="color: #666666">=10**4</span>, verbose<span style="color: #666666">=</span><span style="color: #008000">False</span>):
</div><div id="lc17">    <span style="color: #008000; font-weight: bold">def</span> <span style="color: #0000FF">verbose</span>():
</div><div id="lc18">        percentage <span style="color: #666666">=</span> step
</div><div id="lc19">        prime <span style="color: #666666">=</span> primes(limit)
</div><div id="lc20">        <span style="color: #008000; font-weight: bold">while</span> <span style="color: #008000">True</span>:
</div><div id="lc21">            item <span style="color: #666666">=</span> prime<span style="color: #666666">.</span>next()
</div><div id="lc22">            <span style="color: #008000; font-weight: bold">yield</span> item
</div><div id="lc23">            <span style="color: #008000; font-weight: bold">if</span> item <span style="color: #666666">&gt;</span> percentage:
</div><div id="lc24">                percentage <span style="color: #666666">+=</span> step
</div><div id="lc25">                print_status(<span style="color: #BA2121">&quot;Done already: </span><span style="color: #BB6688; font-weight: bold">%s%%</span><span style="color: #BA2121">&quot;</span> <span style="color: #666666">%</span> <span style="color: #008000">str</span>(mul(truediv(item, limit), <span style="color: #666666">100</span>))[:<span style="color: #666666">5</span>])
</div><div id="lc26">    <span style="color: #008000; font-weight: bold">if</span> verbose:
</div><div id="lc27">        <span style="color: #008000; font-weight: bold">return</span> <span style="color: #008000">sum</span>(verbose())
</div><div id="lc28">    <span style="color: #008000; font-weight: bold">else</span>:
</div><div id="lc29">        <span style="color: #008000; font-weight: bold">return</span> <span style="color: #008000">sum</span>(primes(limit))
</div><div id="lc30">
</div><div id="lc31"><span style="color: #008000; font-weight: bold">def</span> <span style="color: #0000FF">main</span>():
</div><div id="lc32">    task_main(solve)
</div><div id="lc33">    
</div><div id="lc34"><span style="color: #008000; font-weight: bold">if</span> __name__ <span style="color: #666666">==</span> <span style="color: #BA2121">&#39;__main__&#39;</span>:
</div><div id="lc35">    main()
</div></pre></div>
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[color=#408080][i]#!/usr/bin/env python[/i][/color]

task [color=#666666]=[/color] [color=#BA2121]"""The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.

Find the sum of all the primes below two million."""[/color]
__doc__ [color=#666666]=[/color] task
answer [color=#666666]=[/color] [color=#666666]142913828922[/color]
solved [color=#666666]=[/color] [color=#008000]False[/color]
approximate_time_to_finish [color=#666666]=[/color] [color=#666666]60[/color]

[color=#008000][b]from[/b][/color] [color=#0000FF][b]euler[/b][/color] [color=#008000][b]import[/b][/color] atkins_sieve [color=#008000][b]as[/b][/color] primes
[color=#008000][b]from[/b][/color] [color=#0000FF][b]euler[/b][/color] [color=#008000][b]import[/b][/color] print_status, task_main
[color=#008000][b]from[/b][/color] [color=#0000FF][b]operator[/b][/color] [color=#008000][b]import[/b][/color] truediv, mul
[color=#008000][b]from[/b][/color] [color=#0000FF][b]time[/b][/color] [color=#008000][b]import[/b][/color] time

[color=#008000][b]def[/b][/color] [color=#0000FF]solve[/color](limit[color=#666666]=[/color][color=#666666]2[/color][color=#666666]*[/color][color=#666666]10[/color][color=#666666]**[/color][color=#666666]6[/color], step[color=#666666]=[/color][color=#666666]10[/color][color=#666666]**[/color][color=#666666]4[/color], verbose[color=#666666]=[/color][color=#008000]False[/color]):
    [color=#008000][b]def[/b][/color] [color=#0000FF]verbose[/color]():
        percentage [color=#666666]=[/color] step
        prime [color=#666666]=[/color] primes(limit)
        [color=#008000][b]while[/b][/color] [color=#008000]True[/color]:
            item [color=#666666]=[/color] prime[color=#666666].[/color]next()
            [color=#008000][b]yield[/b][/color] item
            [color=#008000][b]if[/b][/color] item [color=#666666]>[/color] percentage:
                percentage [color=#666666]+=[/color] step
                print_status([color=#BA2121]"Done already: [/color][color=#BB6688][b]%s%%[/b][/color][color=#BA2121]"[/color] [color=#666666]%[/color] [color=#008000]str[/color](mul(truediv(item, limit), [color=#666666]100[/color]))[:[color=#666666]5[/color]])
    [color=#008000][b]if[/b][/color] verbose:
        [color=#008000][b]return[/b][/color] [color=#008000]sum[/color](verbose())
    [color=#008000][b]else[/b][/color]:
        [color=#008000][b]return[/b][/color] [color=#008000]sum[/color](primes(limit))

[color=#008000][b]def[/b][/color] [color=#0000FF]main[/color]():
    task_main(solve)
    
[color=#008000][b]if[/b][/color] __name__ [color=#666666]==[/color] [color=#BA2121]'__main__'[/color]:
    main()

--------------------------------------
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<div class="highlight"><pre><div id="lc1"><span class="c">#!/usr/bin/env python</span>
</div><div id="lc2">
</div><div id="lc3"><span class="n">task</span> <span class="o">=</span> <span class="s">&quot;&quot;&quot;The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.</span>
</div><div id="lc4">
</div><div id="lc5"><span class="s">Find the sum of all the primes below two million.&quot;&quot;&quot;</span>
</div><div id="lc6"><span class="n">__doc__</span> <span class="o">=</span> <span class="n">task</span>
</div><div id="lc7"><span class="n">answer</span> <span class="o">=</span> <span class="mi">142913828922</span>
</div><div id="lc8"><span class="n">solved</span> <span class="o">=</span> <span class="bp">False</span>
</div><div id="lc9"><span class="n">approximate_time_to_finish</span> <span class="o">=</span> <span class="mi">60</span>
</div><div id="lc10">
</div><div id="lc11"><span class="kn">from</span> <span class="nn">euler</span> <span class="kn">import</span> <span class="n">atkins_sieve</span> <span class="k">as</span> <span class="n">primes</span>
</div><div id="lc12"><span class="kn">from</span> <span class="nn">euler</span> <span class="kn">import</span> <span class="n">print_status</span><span class="p">,</span> <span class="n">task_main</span>
</div><div id="lc13"><span class="kn">from</span> <span class="nn">operator</span> <span class="kn">import</span> <span class="n">truediv</span><span class="p">,</span> <span class="n">mul</span>
</div><div id="lc14"><span class="kn">from</span> <span class="nn">time</span> <span class="kn">import</span> <span class="n">time</span>
</div><div id="lc15">
</div><div id="lc16"><span class="k">def</span> <span class="nf">solve</span><span class="p">(</span><span class="n">limit</span><span class="o">=</span><span class="mi">2</span><span class="o">*</span><span class="mi">10</span><span class="o">**</span><span class="mi">6</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="mi">10</span><span class="o">**</span><span class="mi">4</span><span class="p">,</span> <span class="n">verbose</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
</div><div id="lc17">    <span class="k">def</span> <span class="nf">verbose</span><span class="p">():</span>
</div><div id="lc18">        <span class="n">percentage</span> <span class="o">=</span> <span class="n">step</span>
</div><div id="lc19">        <span class="n">prime</span> <span class="o">=</span> <span class="n">primes</span><span class="p">(</span><span class="n">limit</span><span class="p">)</span>
</div><div id="lc20">        <span class="k">while</span> <span class="bp">True</span><span class="p">:</span>
</div><div id="lc21">            <span class="n">item</span> <span class="o">=</span> <span class="n">prime</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
</div><div id="lc22">            <span class="k">yield</span> <span class="n">item</span>
</div><div id="lc23">            <span class="k">if</span> <span class="n">item</span> <span class="o">&gt;</span> <span class="n">percentage</span><span class="p">:</span>
</div><div id="lc24">                <span class="n">percentage</span> <span class="o">+=</span> <span class="n">step</span>
</div><div id="lc25">                <span class="n">print_status</span><span class="p">(</span><span class="s">&quot;Done already: </span><span class="si">%s%%</span><span class="s">&quot;</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">mul</span><span class="p">(</span><span class="n">truediv</span><span class="p">(</span><span class="n">item</span><span class="p">,</span> <span class="n">limit</span><span class="p">),</span> <span class="mi">100</span><span class="p">))[:</span><span class="mi">5</span><span class="p">])</span>
</div><div id="lc26">    <span class="k">if</span> <span class="n">verbose</span><span class="p">:</span>
</div><div id="lc27">        <span class="k">return</span> <span class="nb">sum</span><span class="p">(</span><span class="n">verbose</span><span class="p">())</span>
</div><div id="lc28">    <span class="k">else</span><span class="p">:</span>
</div><div id="lc29">        <span class="k">return</span> <span class="nb">sum</span><span class="p">(</span><span class="n">primes</span><span class="p">(</span><span class="n">limit</span><span class="p">))</span>
</div><div id="lc30">
</div><div id="lc31"><span class="k">def</span> <span class="nf">main</span><span class="p">():</span>
</div><div id="lc32">    <span class="n">task_main</span><span class="p">(</span><span class="n">solve</span><span class="p">)</span>
</div><div id="lc33">    
</div><div id="lc34"><span class="k">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">&#39;__main__&#39;</span><span class="p">:</span>
</div><div id="lc35">    <span class="n">main</span><span class="p">()</span>
</div></pre></div>
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<blockquote><code><font color="#408080"><em>#!/usr/bin/env&nbsp;python</em></font>

task&nbsp;<font color="#666666">=</font>&nbsp;<font color="#BA2121">&quot;&quot;&quot;The&nbsp;sum&nbsp;of&nbsp;the&nbsp;primes&nbsp;below&nbsp;10&nbsp;is&nbsp;2&nbsp;+&nbsp;3&nbsp;+&nbsp;5&nbsp;+&nbsp;7&nbsp;=&nbsp;17.

Find&nbsp;the&nbsp;sum&nbsp;of&nbsp;all&nbsp;the&nbsp;primes&nbsp;below&nbsp;two&nbsp;million.&quot;&quot;&quot;</font>
__doc__&nbsp;<font color="#666666">=</font>&nbsp;task
answer&nbsp;<font color="#666666">=</font>&nbsp;<font color="#666666">142913828922</font>
solved&nbsp;<font color="#666666">=</font>&nbsp;<font color="#008000">False</font>
approximate_time_to_finish&nbsp;<font color="#666666">=</font>&nbsp;<font color="#666666">60</font>

<font color="#008000"><strong>from</strong></font>&nbsp;<font color="#0000FF"><strong>euler</strong></font>&nbsp;<font color="#008000"><strong>import</strong></font>&nbsp;atkins_sieve&nbsp;<font color="#008000"><strong>as</strong></font>&nbsp;primes
<font color="#008000"><strong>from</strong></font>&nbsp;<font color="#0000FF"><strong>euler</strong></font>&nbsp;<font color="#008000"><strong>import</strong></font>&nbsp;print_status,&nbsp;task_main
<font color="#008000"><strong>from</strong></font>&nbsp;<font color="#0000FF"><strong>operator</strong></font>&nbsp;<font color="#008000"><strong>import</strong></font>&nbsp;truediv,&nbsp;mul
<font color="#008000"><strong>from</strong></font>&nbsp;<font color="#0000FF"><strong>time</strong></font>&nbsp;<font color="#008000"><strong>import</strong></font>&nbsp;time

<font color="#008000"><strong>def</strong></font>&nbsp;<font color="#0000FF">solve</font>(limit<font color="#666666">=2*10**6</font>,&nbsp;step<font color="#666666">=10**4</font>,&nbsp;verbose<font color="#666666">=</font><font color="#008000">False</font>):
&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>def</strong></font>&nbsp;<font color="#0000FF">verbose</font>():
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;percentage&nbsp;<font color="#666666">=</font>&nbsp;step
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;prime&nbsp;<font color="#666666">=</font>&nbsp;primes(limit)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>while</strong></font>&nbsp;<font color="#008000">True</font>:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;item&nbsp;<font color="#666666">=</font>&nbsp;prime<font color="#666666">.</font>next()
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>yield</strong></font>&nbsp;item
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>if</strong></font>&nbsp;item&nbsp;<font color="#666666">&gt;</font>&nbsp;percentage:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;percentage&nbsp;<font color="#666666">+=</font>&nbsp;step
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;print_status(<font color="#BA2121">&quot;Done&nbsp;already:&nbsp;</font><font color="#BB6688"><strong>%s%%</strong></font><font color="#BA2121">&quot;</font>&nbsp;<font color="#666666">%</font>&nbsp;<font color="#008000">str</font>(mul(truediv(item,&nbsp;limit),&nbsp;<font color="#666666">100</font>))[:<font color="#666666">5</font>])
&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>if</strong></font>&nbsp;verbose:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>return</strong></font>&nbsp;<font color="#008000">sum</font>(verbose())
&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>else</strong></font>:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>return</strong></font>&nbsp;<font color="#008000">sum</font>(primes(limit))

<font color="#008000"><strong>def</strong></font>&nbsp;<font color="#0000FF">main</font>():
&nbsp;&nbsp;&nbsp;&nbsp;task_main(solve)
&nbsp;&nbsp;&nbsp;&nbsp;
<font color="#008000"><strong>if</strong></font>&nbsp;__name__&nbsp;<font color="#666666">==</font>&nbsp;<font color="#BA2121">&#39;__main__&#39;</font>:
&nbsp;&nbsp;&nbsp;&nbsp;main()
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