routine

2026-06-04 02:21:15 +08:00 · 2026-03-18 11:31:37 +08:00
parent de39ce466a
commit 548ca1ffc2
2 changed files with 47 additions and 0 deletions
@@ -0,0 +1,12 @@
+package main
+
+import (
+	"math/bits"
+)
+
+func bitwiseComplement(n int) int {
+	if n == 0 {
+		return 1
+	}
+	return n ^ (1<<bits.Len(uint(n)) - 1)
+}