Top 20

1 0x00h 696 pts
2 boris39 696 pts
3 neoxquick 677 pts
4 maf-ia 659 pts
5 thefinder 639 pts
6 benito255 604 pts
7 mego 588 pts
8 madbat2 579 pts
9 plucth 560 pts
10 Mart 550 pts
11 eax 549 pts
12 nikokks 545 pts
13 Stupefy 529 pts
14 tehron 502 pts
15 Kithyane 497 pts
16 egosum 470 pts
17 malose 427 pts
18 CoYoTe99 414 pts
19 Undr 412 pts
20 Zeta 412 pts

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Shoutbox

28 Jul - 10:38 pm

Pouvez-vous vérifier l'épreuve Email (21) ? En effet, je ne reçois pas d'email de la part du site. Merci

28 Jul - 7:29 pm

Bonjour et merci. Cependant, j'ai résolu le challenge qui me posait pb, donc plus rien à demander... pour l'instant.

28 Jul - 1:48 pm

Ça devrait être réparé maintenant

28 Jul - 12:04 pm

Bonjour, effectivement j'ai le même message d'erreur, on va investiguer merci d'avoir rapporté le soucis

23 Jul - 6:49 pm

Ca veut dire quoi ce message lorsque je veux poster sur le forum ? Votre liste étant trop longue pour être analysée, veuillez la réduire s'il vous plaît !

25 May - 12:07 pm

NGXKGTFWPGODKPGPFQTOKIIVNCJCYVNIWIPVTIFQYDNCKVYPW

9 Apr - 2:10 pm

Yeah this email challenge is a pain in the ***. Sorry about that, we might even remove it in the future, i will see if we find time to fix it

2 Apr - 7:03 am

The Email challenge (#21) appears to be broken again. No mail is being received. Tried with multiple mail services to no avail.

12 May - 11:47 am

Working again now.

10 May - 4:05 pm

Hello, sorry for the late answer, in fact yes there is an issue with the mail, we will try to fix it quickly. Thanks for reporting

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Challenges by categoriesAll challenges

Cryptography

Name Points Validations (%)
Ave Caesar I (4) 4
Vigenère I (10) 7
Ave Caesar II (5) 8
base64 (50) 8
Vigenère II (11) 11
Chaotic cryptography I (29) 12
Chaotic cryptography II (32) 16
Chaotic cryptography III (35) 18
Homemade algorithm (54) 19

Mathematics

Name Points Validations (%)
Sum of two numbers (1) 1
What's the captain age ? (14) 2
Second order equation (2) 3
Timestamp (18) 6
Calculator I (19) 7
BMI & BFP (53) 9
Matrices (12) 10
Calculator II (24) 11
Polynomial regression (25) 14
Random walk (55) 16

Multimedia

Name Points Validations (%)
WAV ? (6) 10
Image color (56) 11
Musical note (7) 14
Bar code I (39) 14
Puzzle (9) 16
Blood image analysis (38) 18
Transmission of a digital signal (33) 18
Forms analysis (28) 19

AI

Name Points Validations (%)
Optical Character Recognition I (20) 11
Language detection (37) 11
Maze (17) 13
Formal Systems and Decision Procedures (49) 17
Chess game I (22) 17
Sliding puzzle (48) 17
Optical Character Recognition II (26) 18
Chess game II (41) 18
Person identification - Iris (36) 19

Network

Name Points Validations (%)
HTTP (15) 8
HTML Parsing (44) 10
Email (21) 12

Miscellaneous

Name Points Validations (%)
Do you know how to count ? (3) 6
Research in a string (16) 6
A sorting problem (13) 7
String manipulation I (42) 8
String manipulation II (43) 8
Data compression I (31) 8
Turing Machine I (45) 11
Card Trick (46) 15
Tower of Hanoï (30) 15
Strange function (57) 15
Data compression II (34) 17

Physics

Name Points Validations (%)
Ballistic (8) 10
Satellite geolocation (23) 17
Pendulum ODE I (51) 17
Geolocation without satellite (27) 18
Pendulum ODE II (52) 18
Radar (58) 19