Suppress overlapping detected climbs when official claims are unsorted

1 files changed, 7 insertions, 2 deletions

diff --git a/ride/climb.go b/ride/climb.go
index f42a9a2..647cf9a 100644
--- a/ride/climb.go
+++ b/ride/climb.go
@@ -270,12 +270,17 @@ func isValidClaim(claim Range, routeLen int) bool {
 // freeRegions returns the maximal sub-ranges of [rStart, rEnd] that are not
 // covered by any claimed range, after discarding claims that fall outside.
 func freeRegions(rStart, rEnd int, claimed []Range) []Range {
-	regions := make([]Range, 0, len(claimed)+1)
-	current := rStart
+	valid := make([]Range, 0, len(claimed))
 	for _, claim := range claimed {
 		if !isValidClaim(claim, rEnd+1) {
 			continue
 		}
+		valid = append(valid, claim)
+	}
+	slices.SortFunc(valid, func(a, b Range) int { return a.Start - b.Start })
+	regions := make([]Range, 0, len(valid)+1)
+	current := rStart
+	for _, claim := range valid {
 		if claim.End < current {
 			continue
 		}