Educational Codeforces Round 62 [Rated for Div. 2]
Difference between en2 and en3, changed 1,795 character(s)
Hello Codeforces!↵

On [contest_time:1140] [contest:1140] will start.↵

Series of Educational Rounds continue being held as [Harbour.Space University](https://harbour.space/) initiative! You can read the details about the cooperation between [Harbour.Space University](https://harbour.space/) and Codeforces in the <a href="http://codeforces.com/blog/entry/51208">blog post</a>.↵
 ↵
This round will be **rated for the participants with rating lower than 2100**. It will be held on extended ICPC rules. The penalty for each incorrect submission until the submission with a full solution is 10 minutes. After the end of the contest you will have 12 hours to hack any solution you want. You will have access to copy any solution and test it locally.↵
 ↵
You will be given **7 problems** and **2 hours** to solve them.↵
 ↵
The problems were invented and prepared by Roman [user:Roms,2019-03-04] Glazov, Adilbek [user:adedalic,2019-03-04] Dalabaev, Vladimir [user:Vovuh,2019-03-04] Petrov, Ivan [user:BledDest,2019-03-04] Androsov, Maksim [user:Ne0n25,2019-03-04] Mescheryakov and me. Also huge thanks to Mike [user:MikeMirzayanov,2019-03-04] Mirzayanov for great systems Polygon and Codeforces.↵

Good luck to all participants!↵

Our friends at Harbour.Space also have a message for you:↵

![ ](https://puu.sh/D3n1Z/84874a75ce.png)↵

Hello Codeforces!↵
 ↵
We want to remind you about the two fully funded scholarships we currently have available: ↵

Master’s in Data Science Scholarship & Master’s in Robotics Scholarship↵

Both scholarship opportunities include:↵
- Full coverage of the Programme’s tuition fee (€23,000 value)↵
- 3 hours of study a day at Harbour.Space University↵
- 4 hours of internship a day with one of our industrial partners↵
- €12,000 euros a year (living allowance)↵
 ↵
If you’re interested in applying for the Robotics Scholarship, [apply here](https://in.harbour.space/remy-robotics-scholarship/?utm_source=codeforces). ↵

If you want to apply for the Data Science Scholarship, fill out the form below and we will contact you about the next steps.↵

<center style="margin: 20.0px;"> <a href="https://harbourspace.typeform.com/to/Zn4j4I" style="font-size: 20.0px;padding: 7.0px 10.0px;background-color: rgb(103,58,183);color: white;">GO TO FORM</a> </center>↵

If you need more information about either, please contact us at [email protected] 


Congratulations to the best hackers:↵
<table class='bordertable'>↵
<tbody>↵
<tr>↵
<th>Rank</th>↵
<th>Competitor</th>↵
<th>Hack Count</th>↵
</tr>↵
<tr>↵
<td>1</td>↵
<td>[user:Haunted_Cpp, 2019-03-22]</td>↵
<td><b><font color="green">8</font></b></td></td>↵
</tr>↵
<tr>↵
<td>2</td>↵
<td>[user:7qk, 2019-03-22]</td>↵
<td><b><font color="green">4</font></b></td></td>↵
</tr>↵
<tr>↵
<td>3</td>↵
<td>[user:Jobaidul, 2019-03-22]</td>↵
<td><b><font color="green">3</font></b></td></td>↵
</tr>↵
<tr>↵
<td>4</td>↵
<td>[user:Abu_Musa_99, 2019-03-22]</td>↵
<td><b><font color="green">3</font></b></td></td>↵
</tr>↵
<tr>↵
<td>5</td>↵
<td>[user:aihay, 2019-03-22]</td>↵
<td><b><font color="green">2</font></b></td></td>↵
</tr>↵
</tbody>↵
</table>↵
37 successful hacks and 149 unsuccessful hacks were made in total!↵

And finally people who were the first to solve each problem:↵
<table class='bordertable'>↵
<tbody>↵
<tr>↵
<th>Problem</th>↵
<th>Competitor</th>↵
<th>Penalty</th>↵
</tr>↵
<tr>↵
<td>A</td>↵
<td>[user:Sonechko, 2019-03-22]</td>↵
<td>0:01</td>↵
</tr>↵
<tr>↵
<td>B</td>↵
<td>[user:usertab34, 2019-03-22]</td>↵
<td>0:04</td>↵
</tr>↵
<tr>↵
<td>C</td>↵
<td>[user:KhaleD_, 2019-03-22]</td>↵
<td>0:04</td>↵
</tr>↵
<tr>↵
<td>D</td>↵
<td>[user:edisonhello, 2019-03-22]</td>↵
<td>0:02</td>↵
</tr>↵
<tr>↵
<td>E</td>↵
<td>[user:Roundgod, 2019-03-22]</td>↵
<td>0:23</td>↵
</tr>↵
<tr>↵
<td>F</td>↵
<td>[user:QDEZ604, 2019-03-22]</td>↵
<td>0:38</td>↵
</tr>↵
<tr>↵
<td>G</td>↵
<td>[user:300iq, 2019-03-22]</td>↵
<td>0:44</td>↵
</tr>↵
</tbody>↵
</table>↵

UPD: [Editorial is out](https://codeforces.com/blog/entry/66147)

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en4 English awoo 2019-03-23 19:43:34 736
en3 English awoo 2019-03-23 19:41:52 1795
ru3 Russian awoo 2019-03-23 19:40:49 2508
ru2 Russian awoo 2019-03-21 23:28:00 1145
en2 English awoo 2019-03-21 23:26:48 1153
en1 English awoo 2019-03-21 08:57:36 1276 Initial revision for English translation
ru1 Russian awoo 2019-03-21 08:49:42 1397 Первая редакция (опубликовано)