Results for &#x201C;Iterators &amp; transformations&#x201D;

Merge two sorted arrays

C: Advance the pointer belonging to the smaller next element and copy any remaining suffix.

Pair corresponding collection elements

C#: Zip stops at the shorter sequence, so validate lengths separately if mismatches are an error.

JavaStream transformations

Partition a collection by a predicate

Java: Use partitioningBy to retain both matching and nonmatching values.

Java✓ Tested

Remove adjacent duplicates from a sorted array

C: Compact equal neighbors with a write index after sorting or otherwise establishing order.

Remove duplicate records by a selected key

C#: DistinctBy keeps the first record for each key in encounter order.

Remove one array element and close the gap

C: memmove handles the overlap while the logical length shrinks by one.

Rotate a nonempty array left by one element

C: Save the first item before shifting the remaining elements.

Search a sorted array with bsearch

C: The search uses the same ordering comparator as the sorted input.

Sort an integer array with qsort

C: The comparator uses relational comparisons to avoid subtraction overflow.

Split values into fixed-size chunks

C#: Enumerable.Chunk creates arrays and allows a shorter final chunk.

JavaStream transformations

Take a page from a stream

Java: Use skip and limit with a known stable input order.

Java✓ Tested

Take a page from an ordered sequence

C#: Apply a stable order before Skip and Take for predictable paging.