细数那些一行代码的LeetCode题

纯属娱乐……

目录

1.LeetCode237.删除链表中的节点

2.LeetCode535.TinURL的加密与解密

3.LeetCode50.Pow(x,n)

4.LeetCode69.x的平方根

5. LeetCode344.反转字符串

6.LeetCode709.转换成小写字母

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1.LeetCode237.删除链表中的节点

class Solution {
public:
    void deleteNode(ListNode* node) {   
        *node = *(node->next);
    }
};

2.LeetCode535.TinURL的加密与解密

题目有点漏洞可以利用哈哈，直接一行代码return即可

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class Solution {
public:
    string encode(string longUrl) {
        return longUrl;
    }
    string decode(string shortUrl) {
        return shortUrl;
    }
};

3.LeetCode50.Pow(x,n)

题目原意是要用反复平方法求解快速幂问题，可参见我的博客：https://blog.csdn.net/qq_41895747/article/details/104379060?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522158402547219724845051720%2522%252C%2522scm%2522%253A%252220140713.130056874..%2522%257D&request_id=158402547219724845051720&biz_id=0&utm_source=distribute.pc_search_result.none-task

class Solution {
public:
    double myPow(double x, int n) {
        return pow(x,n);
    }
};

4.LeetCode69.x的平方根

原题意是要用迭代法求解，纯属抖个机灵

class Solution {
public:
    int mySqrt(int x) {
        return sqrt(x);
    }
};

5. LeetCode344.反转字符串

原题意是双指针哈哈溜了

class Solution {
public:
    void reverseString(vector<char>& s) {
        reverse(s.begin(),s.end());
    }
};

LeetCode709.转换成小写字母

func toLowerCase(str string) string {
    return strings.ToLower(str)
}