}

					// Check that score matches slow reference implementation.
					slowSeq, slowScore := wrapSlow(words, max)
					if score != slowScore {
						t.Fatalf("wrap score = %d != wrapSlow score %d\nwrap: %v\nslow: %v", score, slowScore, seq, slowSeq)
					}
				})
			}
		})
	}
}

// wrapSlow is an O(n²) reference implementation for wrap.
// It returns a minimal-score sequence along with the score.