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feat: add solutions to lc problem: No.0551 

No.0551.Student Attendance Record I
This commit is contained in:
yanglbme 2023-05-10 16:13:11 +08:00
parent 03853123b9
commit b1815b6352
6 changed files with 78 additions and 58 deletions
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35
solution/0500-0599/0551.Student Attendance Record I/README.md
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@ -54,6 +54,12 @@
<!-- 这里可写通用的实现逻辑 -->
**方法一：字符串遍历**
我们可以遍历字符串 $s$，记录字符 `'A'` 和字符串 `"LLL"` 的出现次数。如果字符 `'A'` 的出现次数小于 $2$，且字符串 `"LLL"` 没有出现过，则可以将该字符串视作记录合法，返回 `true`，否则返回 `false`。
时间复杂度 $O(n)$，其中 $n$ 是字符串 $s$ 的长度。空间复杂度 $O(1)$。
<!-- tabs:start -->
### **Python3**
@ -63,7 +69,7 @@
```python
class Solution:
def checkRecord(self, s: str) -> bool:
return s.count('A') <= 1 and 'LLL' not in s
return s.count('A') < 2 and 'LLL' not in s
```
### **Java**
@ -73,20 +79,11 @@ class Solution:
```java
class Solution {
public boolean checkRecord(String s) {
int i = s.indexOf("A");
return (i == -1 || s.lastIndexOf("A") == i) && !s.contains("LLL");
return s.indexOf("A") == s.lastIndexOf("A") && !s.contains("LLL");
}
}
```
### **Go**
```go
func checkRecord(s string) bool {
return strings.Count(s, "A") < 2 && !strings.Contains(s, "LLL")
}
```
### **C++**
```cpp
@ -98,6 +95,22 @@ public:
};
```
### **Go**
```go
func checkRecord(s string) bool {
return strings.Count(s, "A") < 2 && !strings.Contains(s, "LLL")
}
```
### **TypeScript**
```ts
function checkRecord(s: string): boolean {
return s.indexOf('A') === s.lastIndexOf('A') && s.indexOf('LLL') === -1;
}
```
### **...**
```

29
solution/0500-0599/0551.Student Attendance Record I/README_EN.md
View File

@ -55,7 +55,7 @@
```python
class Solution:
def checkRecord(self, s: str) -> bool:
return s.count('A') <= 1 and 'LLL' not in s
return s.count('A') < 2 and 'LLL' not in s
```
### **Java**
@ -63,20 +63,11 @@ class Solution:
```java
class Solution {
public boolean checkRecord(String s) {
int i = s.indexOf("A");
return (i == -1 || s.lastIndexOf("A") == i) && !s.contains("LLL");
return s.indexOf("A") == s.lastIndexOf("A") && !s.contains("LLL");
}
}
```
### **Go**
```go
func checkRecord(s string) bool {
return strings.Count(s, "A") < 2 && !strings.Contains(s, "LLL")
}
```
### **C++**
```cpp
@ -88,6 +79,22 @@ public:
};
```
### **Go**
```go
func checkRecord(s string) bool {
return strings.Count(s, "A") < 2 && !strings.Contains(s, "LLL")
}
```
### **TypeScript**
```ts
function checkRecord(s: string): boolean {
return s.indexOf('A') === s.lastIndexOf('A') && s.indexOf('LLL') === -1;
}
```
### **...**
```

3
solution/0500-0599/0551.Student Attendance Record I/Solution.java
View File

@ -1,6 +1,5 @@
class Solution {
public boolean checkRecord(String s) {
int i = s.indexOf("A");
return (i == -1 || s.lastIndexOf("A") == i) && !s.contains("LLL");
return s.indexOf("A") == s.lastIndexOf("A") && !s.contains("LLL");
}
}

2
solution/0500-0599/0551.Student Attendance Record I/Solution.py
View File

@ -1,3 +1,3 @@
class Solution:
def checkRecord(self, s: str) -> bool:
return s.count('A') <= 1 and 'LLL' not in s
return s.count('A') < 2 and 'LLL' not in s

3
solution/0500-0599/0551.Student Attendance Record I/Solution.ts Normal file
View File

@ -0,0 +1,3 @@
function checkRecord(s: string): boolean {
return s.indexOf('A') === s.lastIndexOf('A') && s.indexOf('LLL') === -1;
}

64
solution/main.py
View File

@ -1,4 +1,3 @@
import json
import time
from datetime import timezone, timedelta, datetime
@ -60,18 +59,18 @@ class Spider:
form1 = {
'operationName': 'globalData',
'query': 'query globalData {\n feature {\n questionTranslation\n subscription\n signUp\n '
'discuss\n mockInterview\n contest\n store\n book\n chinaProblemDiscuss\n '
'socialProviders\n studentFooter\n cnJobs\n enableLsp\n enableWs\n '
'enableDebugger\n enableDebuggerAdmin\n enableDarkMode\n tasks\n '
'leetbook\n __typename\n }\n userStatus {\n isSignedIn\n isAdmin\n '
'isStaff\n isSuperuser\n isTranslator\n isPremium\n isVerified\n '
'isPhoneVerified\n isWechatVerified\n checkedInToday\n username\n '
'realName\n userSlug\n groups\n avatar\n optedIn\n '
'requestRegion\n region\n activeSessionId\n permissions\n notificationStatus {\n '
'lastModified\n numUnread\n __typename\n }\n completedFeatureGuides\n '
'useTranslation\n accountStatus {\n isFrozen\n inactiveAfter\n __typename\n '
'}\n __typename\n }\n siteRegion\n chinaHost\n websocketUrl\n userBannedInfo {\n '
'bannedData {\n endAt\n bannedType\n __typename\n }\n __typename\n }\n}\n',
'discuss\n mockInterview\n contest\n store\n book\n chinaProblemDiscuss\n '
'socialProviders\n studentFooter\n cnJobs\n enableLsp\n enableWs\n '
'enableDebugger\n enableDebuggerAdmin\n enableDarkMode\n tasks\n '
'leetbook\n __typename\n }\n userStatus {\n isSignedIn\n isAdmin\n '
'isStaff\n isSuperuser\n isTranslator\n isPremium\n isVerified\n '
'isPhoneVerified\n isWechatVerified\n checkedInToday\n username\n '
'realName\n userSlug\n groups\n avatar\n optedIn\n '
'requestRegion\n region\n activeSessionId\n permissions\n notificationStatus {\n '
'lastModified\n numUnread\n __typename\n }\n completedFeatureGuides\n '
'useTranslation\n accountStatus {\n isFrozen\n inactiveAfter\n __typename\n '
'}\n __typename\n }\n siteRegion\n chinaHost\n websocketUrl\n userBannedInfo {\n '
'bannedData {\n endAt\n bannedType\n __typename\n }\n __typename\n }\n}\n',
'variables': {},
}
headers = {
@ -86,20 +85,20 @@ class Spider:
'operationName': 'questionData',
'variables': {'titleSlug': question_title_slug},
'query': 'query questionData($titleSlug: String!) {\n question(titleSlug: $titleSlug) {\n '
'questionId\n questionFrontendId\n categoryTitle\n boundTopicId\n title\n '
'titleSlug\n content\n translatedTitle\n translatedContent\n isPaidOnly\n '
'difficulty\n likes\n dislikes\n isLiked\n similarQuestions\n '
'contributors {\n username\n profileUrl\n avatarUrl\n __typename\n '
'}\n langToValidPlayground\n topicTags {\n name\n slug\n '
'translatedName\n __typename\n }\n companyTagStats\n codeSnippets {\n '
'lang\n langSlug\n code\n __typename\n }\n stats\n hints\n '
'solution {\n id\n canSeeDetail\n __typename\n }\n status\n '
'sampleTestCase\n metaData\n judgerAvailable\n judgeType\n mysqlSchemas\n '
'enableRunCode\n envInfo\n book {\n id\n bookName\n pressName\n '
'source\n shortDescription\n fullDescription\n bookImgUrl\n '
'pressImgUrl\n productUrl\n __typename\n }\n isSubscribed\n '
'isDailyQuestion\n dailyRecordStatus\n editorType\n ugcQuestionId\n style\n '
'exampleTestcases\n __typename\n }\n}\n',
'questionId\n questionFrontendId\n categoryTitle\n boundTopicId\n title\n '
'titleSlug\n content\n translatedTitle\n translatedContent\n isPaidOnly\n '
'difficulty\n likes\n dislikes\n isLiked\n similarQuestions\n '
'contributors {\n username\n profileUrl\n avatarUrl\n __typename\n '
'}\n langToValidPlayground\n topicTags {\n name\n slug\n '
'translatedName\n __typename\n }\n companyTagStats\n codeSnippets {\n '
'lang\n langSlug\n code\n __typename\n }\n stats\n hints\n '
'solution {\n id\n canSeeDetail\n __typename\n }\n status\n '
'sampleTestCase\n metaData\n judgerAvailable\n judgeType\n mysqlSchemas\n '
'enableRunCode\n envInfo\n book {\n id\n bookName\n pressName\n '
'source\n shortDescription\n fullDescription\n bookImgUrl\n '
'pressImgUrl\n productUrl\n __typename\n }\n isSubscribed\n '
'isDailyQuestion\n dailyRecordStatus\n editorType\n ugcQuestionId\n style\n '
'exampleTestcases\n __typename\n }\n}\n',
}
try:
@ -157,17 +156,17 @@ class Spider:
'relative_path_cn': path_cn,
'relative_path_en': path_en,
'title_cn': question_detail.get('translatedTitle')
or question_title_en
or '',
or question_title_en
or '',
'title_en': question_title_en or '',
'question_title_slug': question_title_slug,
'content_en': question_detail.get('content'),
'content_cn': question_detail.get('translatedContent')
or question_detail.get('content')
or '',
or question_detail.get('content')
or '',
'tags_en': [e['name'] for e in topic_tags if e['name']] or [],
'tags_cn': [e['translatedName'] for e in topic_tags if e['translatedName']]
or [],
or [],
'difficulty_en': question_detail.get('difficulty'),
'difficulty_cn': difficulty.get(question_detail.get('difficulty')),
'code_snippets': question_detail.get('codeSnippets') or [],
@ -316,7 +315,6 @@ for q in spider.get_all_questions(retry=4):
time.sleep(0.3)
question_details[slug] = Spider.format_question_detail(detail)
# 周赛场次列表
contest_list = get_contests(refresh_all)
cls = []