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Chapter 01 · Get started
First program
212/3592 XP0/7 checkpoints validated
11/147 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
11/210Every exercise you've started, completed, refined and mastered.
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ACTIVITY
Recent exercise and challenge runs.
rev_str
Retry · 1 attempt
Sep 21
max
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Sep 14
strcspn
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Sep 14
sort_list
Passed · 6 attempts
Aug 31
swap_bits
Passed · 1 attempt
Aug 29
show_bits
Passed · 2 attempts
Aug 28
reverse_bits
Passed · 7 attempts
Aug 28
prime_factors
Passed · 4 attempts
Aug 25
flood_fill
Passed · 1 attempt
Aug 25
print_digits
Retry · 1 attempt
Aug 24
Member since 2 monthsActive Sep 21