Data commit

Task/Gray-code/Go/gray-code.go

@@ -0,0 +1,23 @@
+package main
+
+import "fmt"
+
+func enc(b int) int {
+    return b ^ b>>1
+}
+
+func dec(g int) (b int) {
+    for ; g != 0; g >>= 1 {
+        b ^= g
+    }
+    return
+}
+
+func main() {
+    fmt.Println("decimal  binary   gray    decoded")
+    for b := 0; b < 32; b++ {
+        g := enc(b)
+        d := dec(g)
+        fmt.Printf("  %2d     %05b   %05b   %05b  %2d\n", b, b, g, d, d)
+    }
+}