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Chapter 01 · Get started
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56/3592 XP0/7 checkpoints validated
6/147 required exercises
View pathTECHNICAL SKILLS
CHALLENGE ACHIEVEMENTS
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Foundations 1
Best0%
02
Strings & Bits
03
Lists, Math & Bases
04
Algorithms & Parsers
05
Strings from Scratch
06
Memory & Pointers
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
7/210Every exercise you've started, completed, refined and mastered.
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In progress
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Mastered
STREAK
0daysExercises, challenges and checkpoints you cleared, day by day over the last 22 weeks.
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Active days
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ACTIVITY
Recent exercise and challenge runs.
fix-the-prototype
Retry · 2 attempts
Aug 29
fix-the-syntax
Passed · 8 attempts
Aug 29
static_byte
Passed · 1 attempt
Aug 29
countdown
Passed · 1 attempt
Aug 29
swap_int
Retry · 5 attempts
Aug 29
putchar
Passed · 2 attempts
Aug 29
print_digits
Passed · 3 attempts
Aug 29
bare_char
Passed · 4 attempts
Aug 29
hello
Retry · 11 attempts
Aug 29
isalpha
Retry · 1 attempt
Aug 29
Member since 2 monthsActive Aug 29