Choose a skill
Focus on one capability at a time.
Deliberate practice for developers
Learn by solving, failing, understanding, and trying again.
Build real developer skill through deliberate practice. Progress through increasingly difficult exercises, receive precise evaluation, and turn repetition into lasting capability.
C / LEVEL 010 / 100 XP
Next exercise
aff_first_param
Read argv. Handle the missing-input case. Write exact output.
$ evaluation --preview
PASS file validation
PASS compilation
PASS public tests 4 / 4
The learning loop
Practice with a clear feedback cycle
Solve an exercise
Work from a precise subject and constraints.
Receive evaluation
See actionable checks, not a vague score.
Unlock more
Earn skill XP and advance deliberately.
Skills
Start deep. Expand over time.
The first release focuses exclusively on C. Other disciplines are planned and shown only to make the longer path visible.
C programmingFirst track
Problem solvingPlanned
AlgorithmsPlanned
MathematicsPlanned
TypingPlanned
Linux and shellPlanned
GitPlanned
DebuggingPlanned
Software designPlanned
Progression
Every skill has its own path.
Begin each skill independently, build XP through progressively unlocked exercises, and develop depth without skipping foundations. A future global profile level will summarize progress across tracks; this release begins with C.
Product preview — simulated report
File validationPASS
CompilationPASS
Allowed functionsPASS
Public tests4 / 4
Hidden tests8 / 8
Memory checksPASS
Final resultPASSED
XP earned+50