fix/345: clean up redundant code

Author: novahe

leetcode/0345.Reverse-Vowels-of-a-String/345. Reverse Vowels of a String.go

@@ -3,25 +3,22 @@ package leetcode
 func reverseVowels(s string) string {
 	b := []byte(s)
 	for i, j := 0, len(b)-1; i < j; {
-		if isVowels(b[i]) && isVowels(b[j]) {
-			b[i], b[j] = b[j], b[i]
-			i++
-			j--
-		} else if isVowels(b[i]) && !isVowels(b[j]) {
-			j--
-		} else if !isVowels(b[i]) && isVowels(b[j]) {
-			i++
-		} else {
+		if !isVowel(b[i]) {
 			i++
+			continue
+		}
+		if !isVowel(b[j]) {
 			j--
+			continue
 		}
+		b[i], b[j] = b[j], b[i]
+		i++
+		j--
 	}
 	return string(b)
 }
 
-func isVowels(s byte) bool {
-	if s == 'a' || s == 'e' || s == 'i' || s == 'o' || s == 'u' || s == 'A' || s == 'E' || s == 'I' || s == 'O' || s == 'U' {
-		return true
-	}
-	return false
+func isVowel(s byte) bool {
+	return s == 'a' || s == 'e' || s == 'i' || s == 'o' || s == 'u' || s == 'A' ||
+		s == 'E' || s == 'I' || s == 'O' || s == 'U'
 }

website/content/ChapterFour/0300~0399/0345.Reverse-Vowels-of-a-String.md

@@ -37,35 +37,30 @@ Output: "leotcede"
 ## 代码
 
 ```go
-
 package leetcode
 
 func reverseVowels(s string) string {
 	b := []byte(s)
 	for i, j := 0, len(b)-1; i < j; {
-		if isVowels(b[i]) && isVowels(b[j]) {
-			b[i], b[j] = b[j], b[i]
-			i++
-			j--
-		} else if isVowels(b[i]) && !isVowels(b[j]) {
-			j--
-		} else if !isVowels(b[i]) && isVowels(b[j]) {
-			i++
-		} else {
+		if !isVowel(b[i]) {
 			i++
+			continue
+		}
+		if !isVowel(b[j]) {
 			j--
+			continue
 		}
+		b[i], b[j] = b[j], b[i]
+		i++
+		j--
 	}
 	return string(b)
 }
 
-func isVowels(s byte) bool {
-	if s == 'a' || s == 'e' || s == 'i' || s == 'o' || s == 'u' || s == 'A' || s == 'E' || s == 'I' || s == 'O' || s == 'U' {
-		return true
-	}
-	return false
+func isVowel(s byte) bool {
+	return s == 'a' || s == 'e' || s == 'i' || s == 'o' || s == 'u' || s == 'A' ||
+		s == 'E' || s == 'I' || s == 'O' || s == 'U'
 }
-
 ```