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0 / 5 modules
Structure your code
0 / 4 modules
Text
0 / 6 modules
Memory
0 / 3 modules
Your own types
0 / 5 modules
The machine
0 / 4 modules
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0 / 1 modules
First program
0 / 7
Read the error
0 / 5
Types and values
0 / 7
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0 / 7
Command line
0 / 6
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0 / 5
Recursion
0 / 6
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0 / 7
Arrays and matrices
0 / 7
Characters and ASCII
0 / 4
Strings: walking and…
0 / 6
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0 / 4
Words and tokens
0 / 4
Transforming text
0 / 5
Numbers and bases
0 / 6
Dynamic memory
0 / 5
Bytes and raw memory
0 / 4
Memory safety
0 / 6
Structs, unions, enu…
0 / 6
Headers and the prep…
0 / 3
Linked lists
0 / 4
Stacks, queues, trees
0 / 3
Generic code
0 / 3
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0 / 4
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0 / 7
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0 / 3
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0 / 4
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0 / 4
C foundations checkpo…
5 tasks · not ready
Code structure checkp…
4 tasks · not ready
Text handling checkpo…
5 tasks · not ready
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Chapter checkpoints
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Stacks, queues, trees
An abstract data type is an interface plus an invariant.
Required exercises
0 / 3
3 required exercises
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0 optional
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Difficulty 4 to 5
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0 / 88 XP
Exercises · 3
Exercise
Level
XP
Status
match_brackets
Validate that every bracket in each argument is properly opened, closed, and nested
+24
New
rpn
Evaluate a Reverse Polish Notation arithmetic expression passed as a single space-separated string
+32
New
expr_tree_eval
+32
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