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1832:判断句子是否为全字母句(每日一题2022.12.13)

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轩辕龙儿 2022-12-13 15:05:45 +08:00
parent 2b7b78180e
commit 95c1188cbc
1 changed files with 21 additions and 6 deletions
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27
src/main/java/leetcode/editor/cn/CheckIfTheSentenceIsPangram.java
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@ -47,16 +47,31 @@ public class CheckIfTheSentenceIsPangram {
//力扣代码
//leetcode submit region begin(Prohibit modification and deletion)
class Solution {
//public boolean checkIfPangram(String sentence) {
// List<Character> list = new ArrayList<>();
// int num = 0;
// for (char ch : sentence.toCharArray()) {
// if (ch >= 'a' && ch <= 'z' && !list.contains(ch)) {
// list.add(ch);
// num++;
// }
// }
// return num == 26;
//}
public boolean checkIfPangram(String sentence) {
List<Character> list = new ArrayList<>();
int num = 0;
if (sentence.length() < 26) {
return false;
}
int[] arrs = new int[26];
for (char ch : sentence.toCharArray()) {
if (ch >= 'a' && ch <= 'z' && !list.contains(ch)) {
list.add(ch);
num++;
arrs[ch - 'a']++;
}
for (int i = 0; i < 26; i++) {
if (arrs[i] == 0) {
return false;
}
}
return num == 26;
return true;
}
}
//leetcode submit region end(Prohibit modification and deletion)