First clear solution for Even the Last by mehWincenty - python coding challenges

Enable Javascript in your browser and then refresh this page, for a much enhanced experience.

First solution in Clear category for Even the Last by mehWincenty

def checkio(array):
    
    if len(array)==0:
        return 0
    c=0
    i=0
    while i
                        Oct. 21, 2016

                        
                            Comments:
                            
                                
                                    danleonard
 on Aug. 20, 2019, 4:12 p.m.

                                    <p>I like the i+=2 part. Don't have to check if even that way.</p>

                                
                            
                                
                                    netDrewid
 on Jan. 7, 2021, 10:01 p.m.

                                    <p>Agreed. Very simple and clean.</p>

                                
                            
                                
                                    pokryshkin
 on May 29, 2021, 1:49 p.m.

                                    <p>instead of</p>

<pre class='brush: python'>    c, i = 0, 0
    while i&lt;len(array):
    c+=array[i]
    i+=2
</pre>

<p>You can use something like</p>

<pre class='brush: python'>с = sum((array[i] for i in range(0,len(array),2)))
</pre>

                                
                            
                                
                                    alterGNU
 on June 13, 2021, 1:16 a.m.

                                    <p>Hi^^ nicely done!</p>

<p>As @pokryshkin said, you can use the `sum()` function^^:
```
checkio = lambda a: sum(a[::2])*a[-1] if len(a)!=0 else 0
```
Here `sum(a[::2])` replace the line 5to9 and `a[-1]` == `a[len(a)-1]` :)</p>

List but not the least

0 %

You ClassRoom Demo is Ready With the new tool CheckiO ClassRoom, you will be able to analyze your students' progress, have your own leaderboard, change missions order on the map, and so on.