FilesExpand file tree

 master

/

main.cpp

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

executable file

·

35 lines (26 loc) · 628 Bytes

 master

/

main.cpp

Copy path

Top

File metadata and controls

• Code
• Blame

executable file

·

35 lines (26 loc) · 628 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

/// Source : https://leetcode.com/problems/reverse-string/description/

/// Author : liuyubobobo

/// Time : 2018-06-04

#include <iostream>

using namespace std;

// 344. Reverse String

// https://leetcode.com/problems/reverse-string/description/

// Two Pointers

// 时间复杂度: O(n)

// 空间复杂度: O(1)

class Solution {

public:

string reverseString(string s) {

int i = 0, j = s.size() - 1;

while(i < j){

swap(s[i], s[j]);

i ++;

j --;

}

return s;

}

};

int main() {

cout << Solution().reverseString("hello") << endl;

return 0;

}