Karol Grzeszczak
Level 31, Poland
Rating:
45
Rating
Correct code
Complete all tasks in Level 8. Java Multithreading quest.
37/37
100
Rating
100
Test: 100 days of code
Complete at least one task per day for 100 days in a row
100/100
45
Rating
Bounty hunter
Complete all tasks in Level 7. Java Multithreading quest.
30/30
25
Rating
Coder of Steel
Complete 800 tasks
800/800
40
Rating
Time trial
Complete all tasks in Level 6. Java Multithreading quest.
35/35
25
Rating
Platinum Marathon
Earn the Marathon achievement (5 tasks in one day) 42 times
42/42
40
Rating
Fellow programmer
Complete all tasks in Level 5. Java Multithreading quest.
30/30
40
Rating
Long distance race
Complete all tasks in Level 4. Java Multithreading quest.
22/22
10
Rating
Elon Musk
Complete all tasks in the first quest.
309/309
9
Rating
Combo master!
Complete all tasks in Level 10. Java Syntax quest
23/23
35
Rating
Triumph of thought
Complete all tasks in Level 2. Java Multithreading quest.
31/31
20
Rating
Hunting season
Complete 700 tasks
700/700
75
Rating
Golden Megatron
Earn the Megatron achievement (20 tasks in one day) 21 times
21/21
35
Rating
Miracle of programming
Complete all tasks in Level 1. Java Multithreading quest.
29/29
30
Rating
Golden Super Hackathon
Earn the Super Hackathon achievement (15 tasks in one day) 21 times
21/21
45
Rating
Java is more than precious code
Complete all tasks in Level 10. Java Core quest.
28/28
40
Rating
Slow and steady wins the race
Complete all tasks in Level 9. Java Core quest.
29/29
20
Rating
600 rounds per minute
Complete 600 tasks
600/600
20
Rating
Platinum Sprint
Earn the Sprint achievement (2 tasks in one day) 42 times
42/42
40
Rating
No pain, no gain
Complete all tasks in Level 8. Java Core quest.
29/29
25
Rating
Golden Hackathon
Earn the Hackathon achievement (9 tasks in one day) 21 times
21/21
40
Rating
Old school
Complete all tasks in Level 7. Java Core quest.
23/23
20
Rating
No room for bugs here
Complete 500 tasks
500/500
35
Rating
Hero of the day
Complete all tasks in Level 6. Java Core quest.
34/34
50
Rating
100
Test: 50 days of code
Complete at least one task per day for 50 days in a row
50/50
35
Rating
Omnipresent
Complete all tasks in Level 5. Java Core quest.
34/34
1
Rating
Volunteer
Have your answer selected as the solution in the Help section once
1/1
25
Rating
100
Test: 25 days of code
Complete at least one task per day for 25 days in a row
25/25
35
Rating
DIY
Complete all tasks in Level 4. Java Core quest.
24/24
7
Rating
Luck is on my side!
Complete all tasks in Level 9. Java Syntax quest
33/33
15
Rating
400-meter dash
Complete 400 tasks
400/400
30
Rating
Bug fighter
Complete all tasks in Level 3. Java Core quest.
31/31
30
Rating
You never know what you can do until you try!
Complete all tasks in Level 2. Java Core quest.
36/36
30
Rating
Ready for anything!
Complete all tasks in Level 1. Java Core quest.
26/26
50
Rating
Silver Megatron
Earn the Megatron achievement (20 tasks in one day) seven times
7/7
15
Rating
The 300 Spartans
Complete 300 tasks
300/300
25
Rating
Silver Super Hackathon
Earn the Super Hackathon achievement (15 tasks in one day) seven times
7/7
7
Rating
A programmer is born
Complete all tasks in Level 8. Java Syntax quest
33/33
20
Rating
Golden Marathon
Earn the Marathon achievement (5 tasks in one day) 21 times
21/21
10
Rating
100
Test: 10 days of code
Complete at least one task per day for 10 days in a row
10/10
3
Rating
One step back and two steps forward!
Complete all tasks in Level 3. Java Syntax quest
29/29
7
Rating
Midas Touch!
Complete all tasks in Level 7. Java Syntax quest
31/31
5
Rating
Pocket protector
Complete all tasks in Level 5. Java Syntax quest
35/35
12
Rating
200% Efficiency
Complete 200 tasks
200/200
5
Rating
Wizard apprentice
Complete all tasks in Level 6. Java Syntax quest
25/25
15
Rating
Golden Sprint
Earn the Sprint achievement (2 tasks in one day) 21 times
21/21
20
Rating
Silver Hackathon
Earn the Hackathon achievement (9 tasks in one day) seven times
7/7
5
Rating
Never give up!
Complete all tasks in Level 4. Java Syntax quest
46/46
3
Rating
Combo!
Complete all tasks in Level 2. Java Syntax quest
22/22
10
Rating
Centurion
Complete 100 tasks
100/100
15
Rating
Silver Marathon
Earn the Marathon achievement (5 tasks in one day) seven times
7/7
10
Rating
Silver Sprint
Earn the Sprint achievement (2 tasks in one day) seven times
7/7
5
Rating
100
Test: 5 days of code
Complete at least one task per day for 5 days in a row
5/5
7
Rating
50 shades of coding
Complete 50 tasks
50/50
3
Rating
The Scientific Approach!
Complete all tasks in Level 1. Java Syntax quest
23/23
5
Rating
Perfect 10
Complete 10 tasks
10/10
1
Rating
Well begun is half done
Complete Level 0
1/1
3
Rating
Gimme 5!
Complete five tasks
5/5
1
Rating
One small step
Complete your first task
1/1
1
Rating
Commentator
Get 10 likes for a comment in the Lessons or Tasks section
4/10
30
Rating
Platinum Hackathon
Earn the Hackathon achievement (9 tasks in one day) 42 times
36/42
3
Rating
Savior
Have your answer selected as the solution in the Help section 3 times
2/3
35
Rating
Genius at work!
Complete all tasks in Level 3. Java Multithreading quest.
31/32
35
Rating
Platinum Super Hackathon
Earn the Super Hackathon achievement (15 tasks in one day) 42 times
30/42
45
Rating
Achiever
Complete all tasks in Level 9. Java Multithreading quest.
26/36
25
Rating
A bazillion bugs later
Complete 900 tasks
875/900
100
Rating
Platinum Megatron
Earn the Megatron achievement (20 tasks in one day) 42 times
29/42
50
Rating
Achiever II
Complete all tasks in Level 10. Java Multithreading quest.
1/30
1
Rating
Daily
Sprint
Complete two tasks in one day
0/2
10
Rating
Mine Picker
Implement the "Mine Picker" game
0/16
1
Rating
Dickens
Get 10 likes for a post in the Random group
0/10
10
Rating
Hungry Snake
Implement the "Hungry Snake" game
0/20
15
Rating
Moon Lander
Implement the "Moon Lander" game
0/23
10
Rating
2048
Implement the "2048" game
0/18
15
Rating
Galabugs Invaders
Implement the "Galabugs Invaders" game
0/34
15
Rating
Racer
Implement the "Racer" game
0/28
35
Rating
Onward and upward II
Complete all tasks in Level 1. Java Collections quest.
0/18