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Chapter 01 · Get started
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88/3592 XP0/7 checkpoints validated
8/147 required exercises
View pathTECHNICAL SKILLS
CHALLENGE ACHIEVEMENTS
0/16 passed01Retry
Foundations 1
Best0%
02Retry
Strings & Bits
Best13%
03
Lists, Math & Bases
04Retry
Algorithms & Parsers
Best10%
05Retry
Strings from Scratch
Best25%
06Retry
Memory & Pointers
Best0%
07
Rebuild the C Standard Library
08
Mastery
09
Algorithms & Parsing
10
Systems & Processes
11
Network Systems
12
Grids & Simulation
13
Pointers & Memory
14
C Language Core
15
Data Structures
16
Sort & Search
EXERCISE MASTERY
9/210Every exercise you've started, completed, refined and mastered.
Not started
In progress
Completed
Mastered
STREAK
0daysExercises, challenges and checkpoints you cleared, day by day over the last 22 weeks.
Best streak
2d
This week
0
Active days
4
ACTIVITY
Recent exercise and challenge runs.
Foundations 1
Abandoned · 0/8 levels · 15 min
Sep 3
Algorithms & Parsers
Incomplete · 1/10 levels · 360 min
Sep 1
fix-the-syntax
Passed · 10 attempts
Sep 1
putchar
Passed · 3 attempts
Sep 1
bare_char
Passed · 2 attempts
Sep 1
static_byte
Passed · 11 attempts
Sep 1
Strings from Scratch
Incomplete · 1/4 levels · 180 min
Aug 31
Strings & Bits
Incomplete · 1/8 levels · 180 min
Aug 29
print_digits
Passed · 4 attempts
Aug 28
countdown
Passed · 1 attempt
Aug 28
Member since 2 monthsActive Sep 3