add new solutions

solutions/1/q151/solution.go

@@ -0,0 +1,19 @@
+package q151
+
+import "strings"
+
+func reverseWords(s string) string {
+	b := strings.Builder{}
+	fields := strings.Fields(s)
+	if len(fields) > 0 {
+		b.WriteString(fields[len(fields)-1])
+	}
+	for i := len(fields) - 2; i >= 0; i-- {
+		b.WriteByte(' ')
+		b.WriteString(fields[i])
+	}
+
+	return b.String()
+}
+
+var _ = reverseWords