leet-code/src/main/java/leetcode/editor/cn/ReverseVowelsOfAString.java
2021-08-19 22:34:16 +08:00

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//给你一个字符串 s ,仅反转字符串中的所有元音字母,并返回结果字符串。
//
// 元音字母包括 'a'、'e'、'i'、'o'、'u',且可能以大小写两种形式出现。
//
//
//
// 示例 1
//
//
//输入s = "hello"
//输出:"holle"
//
//
// 示例 2
//
//
//输入s = "leetcode"
//输出:"leotcede"
//
//
//
// 提示:
//
//
// 1 <= s.length <= 3 * 105
// s 由 可打印的 ASCII 字符组成
//
// Related Topics 双指针 字符串
// 👍 209 👎 0
package leetcode.editor.cn;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
//345:反转字符串中的元音字母
class ReverseVowelsOfAString {
public static void main(String[] args) {
//测试代码
Solution solution = new ReverseVowelsOfAString().new Solution();
}
//力扣代码
//leetcode submit region begin(Prohibit modification and deletion)
class Solution {
public String reverseVowels(String s) {
List<Character> list = new ArrayList<>(Arrays.asList('a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U'));
int start = 0;
int end = s.length() - 1;
char[] chs = s.toCharArray();
while (start < end) {
if (list.contains(chs[start]) && list.contains(chs[end])) {
char ch = chs[start];
chs[start] = chs[end];
chs[end] = ch;
start++;
end--;
}
if(!list.contains(chs[start])){
start++;
}
if(!list.contains(chs[end])){
end--;
}
}
return new String(chs);
}
}
//leetcode submit region end(Prohibit modification and deletion)
}