Coding Contest - August 13, 2011
 Coding Contest - August 13, 2011
Demonstrate your coding skills
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| Type of Event: | Event |
| From: | 2011/08/13 03:00:00 PM |
| Till: | 2011/08/13 06:00:00 PM |
| Recurring: | no |
| Organizer: | syn2cat |
| Cost: | 0 EUR0 $ 0 £ 0 CHF |
| Mandatory registration: |
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| Attendees: | Kwisatz, prometheus, SteveClement, Gunstick, Azunix Log-in to RSVP |
| Contact Person(s): | Destructive (mail) |
| Keywords: | |
| Location | |
| Where: | Hackerspace, Strassen (11, rue du Cimetière, L-8018 Strassen, Luxembourg) |
| Map: |
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| Tools | |
| QrCode: | 
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| Add to your calendar: | Download … further results |
| Alternate picture: | None |
| Announce globally: | no |
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The goal of this contest is not to find the best coder, but to enjoy coding together and to motivate others to start coding. If you can write a "hello world" program in any language, you are welcome. There will be certainly someone to help you to solve the tasks.
We will use the following example problem to make us familiar with the contest system.
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Problem
Mr. Foo has to determine if his students have passed the year. As he has many students which have written many tests, he can't use his calculator, because it would take him too long. He knows that you are a skilled hacker, so he has asked you to make a program to automate his task.
He has S students. Each student has written N tests. The test scores ranges from 0 to 60 (both inclusive). A student has passed his year if he has an average score of more or equal to 30. The average is not rounded.
Input
You are given an input file. The first line consists of 2 integers: the number of students S (1 <= S <= 1000) and the number of tests N (1 <= N <= 1000). S lines follow, which consists of N integers, representing the scores of a student.
Output
You have to create an output file which contains one line per student. Each containing 'PASSED' if he has passed his year, otherwise 'FAILED'.
Input example
4 2
29 30
30 30
50 60
0 58
Output example
FAILED
PASSED
PASSED
FAILED
Solutions
bash
kwisatz@arbre:~/coding/bash% bash sba.sh i FAILED PASSED PASSED FAILED kwisatz@arbre:~/coding/bash% wc -c sba.sh 128 sba.sh kwisatz@arbre:~/coding/bash% cat sba.sh tail -n+2 $1|while read i;do k=0;s=0;for j in $i;do((++k));((s=s+j));done;[[ $s -ge $((30*k)) ]]&&echo PASSED||echo FAILED;done
php
jedi@test:~/work/coding$ php foo.php FAILED PASSED PASSED FAILED jedi@test:~/work/coding$ wc -c foo.php 116 foo.php jedi@test:~/work/coding$ cat foo.php
<?$h=file('i',2);$i=1;while($h[$i]) echo(((array_sum($a=explode(' ',$h[$i++]))/count($a))>=30)?PASSED:FAILED)."\n";
awk
gunstick@manion:~$ awk -f 1.awk test.txt FAILED PASSED PASSED FAILED gunstick@manion:~$ wc -c 1.awk 57 1.awk gunstick@manion:~$ cat 1.awk
{for(s=i=0;i<NF;)s+=$++i;$0=s/i<30?"FAILED":"PASSED"}NR>1
perl
gunstick@manion:~/contest$ perl foo.pl foo1.in FAILED PASSED PASSED FAILED gunsick@manion:~/contest$ wc -c foo.pl 75 foo.pl gunstick@manion:~/contest$ cat foo.pl
<>;while(<>){$s=0;$n=map{$s+=$_}split;print $s/$n<30?"FAILED\n":"PASSED\n"}
python
# CodingContest - Help Mister Foo # No focus on getting a short code rfile = open("marks.txt") wfile = open("results.txt",'w') students, tests = rfile.readline().split(" ") for students in rfile: values = students.rstrip("\n").split(" ") if (sum(int(x) for x in values)) / float(tests) < 30: wfile.write("FAILED!\n") else: wfile.write("PASSED!\n") rfile.close() wfile.close()
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Host:08-13-2011 user$ python3 Help_Mister_Foo.py Host:08-13-2011 user$ cat results.txt Failed! Passed! Passed! Failed! Host:08-13-2011 user$ wc -c Help_Mister_Foo.py 358 Help_Mister_Foo.py
