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Small, practical examples. Search by task or narrow things down below.

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C++Tasks & synchronization

Deliver a result through a promise and future

C++: A promise sets a shared state and its future retrieves the value.

C++✓ Tested
C++Getting Started

Divide using a fractional number

C++: Use a floating-point operand to preserve the fractional part of a division.

C++✓ Tested
CGetting Started

Divide using a fractional number

C: Use a floating-point operand to preserve the fractional part of a division.

C✓ Tested
CBinary formats & structured parsing

Encode a byte buffer as hexadecimal

C: Format each byte as an unsigned two-digit hexadecimal value.

C✓ Tested
C++Getting Started

Explain a calculation with a comment

C++: Keep the code executable while documenting why a fixed input is used.

C++✓ Tested
CGetting Started

Explain a calculation with a comment

C: Keep the code executable while documenting why a fixed input is used.

C✓ Tested
CArray transformations

Filter an array in place with a write index

C: Only retained values advance the write position.

C✓ Tested
TypeScriptCollections & records

Filter and transform an array

Keep active objects and extract their names.

filter✓ Tested
C++Ordering & set operations

Find a median element without fully sorting

C++: nth_element partitions around the element that would occupy the chosen sorted position.

C++✓ Tested
C++Strings

Find a substring

Check the result of std::string::find against npos.

C++✓ Tested
CStrings

Find a substring

Use strstr to find a literal substring in a C string.

C✓ Tested
CArrays

Find an array element

Use a bounded linear search over a C array.

C✓ Tested