Results for “Queues & collection operations”
Small, practical examples. Search by task or narrow things down below.
Calculate a lexical relative path
C++: lexically_relative compares path components without requiring the paths to exist.
C++✓ Tested
Calculate a small factorial iteratively
C: Multiply a bounded sequence using an unsigned accumulator.
C✓ Tested
Calculate an average without integer division truncation
C: Accumulate into double and divide by the nonzero number of readings.
C✓ Tested
Calculate the greatest common divisor
C: Euclid’s algorithm repeatedly replaces a pair with the divisor and remainder.
C✓ Tested
Check exact array membership
Bash Scripts: Compare each element literally instead of searching a concatenated string.
Bash Scripts✓ Tested
Check whether a range is already sorted
C++: is_sorted reports ordering without modifying the input.
C++✓ Tested
Check whether any selected element matches
jQuery: is returns a Boolean without changing the selection.
jQuery✓ Tested
Clean up a temporary directory automatically
Python: Use TemporaryDirectory as a context manager so cleanup also happens after exceptions.
Python✓ Tested
Combine results while retaining duplicates
SQL: UNION ALL does not spend work removing equal rows.
SQL✓ Tested
Combine results while retaining duplicates
SQL Server: UNION ALL does not spend work removing equal rows.
SQL Server✓ Tested
Combine results while retaining duplicates
Postgres: UNION ALL does not spend work removing equal rows.
Postgres✓ Tested
Combine results while retaining duplicates
SQLite: UNION ALL does not spend work removing equal rows.
SQLite✓ Tested