## Problem 065 — rank:322

**Title:** Long-range haplotype phasing

**Added binding assumptions (LaTeX):**

```latex
Fix the phase error model and the permitted chromosome-wise global swaps. Connectivity is necessary for absolute relative phase between components but is not sufficient for reliable recovery under arbitrary errors. Report uncertain component orientations and define switch error only between successive heterozygous sites with identifiable ordering. Phase accuracy and switch accuracy must each include their own sampling uncertainty.
```

**Direct edits:** 0. **Fresh external checks:** None; supplied sources retained as provenance.