Reverse string c++

How to reverse a string in c++ using reverse function

#include <iostream>
//The library below must be included for the reverse function to work
#include<bits/stdc++.h> 
using namespace std;

int main() {
  
  string greeting = "Hello";
  //Note that it takes the iterators to the start and end of the string as arguments
  reverse(greeting.begin(),greeting.end());
  cout<<greeting<<endl;
}

Source: educative.io

Reverse string c++

#include <iostream>
#include<string>
#include<algorithm>
using namespace std;
int main()
{
string str;
  getline(cin,str);
  reverse(str.begin(),str.end());
  cout<<str;
}

344. Reverse String c++

class Solution {
public:
    void reverseString(vector<char>& s) {
        int i=0;
        int j=s.size()-1;
        while(i<j)
        {
            swap(s[i],s[j]);
            i++;
            j--;
        }
    }
};

//Runtime: 20 ms, faster than 76.31% of C++ online submissions for Reverse String.
//Memory Usage: 23.3 MB, less than 38.31% of C++ online submissions for Reverse String.

Source: codejudge.blogspot.com

Similar codes

2 votes158 views1 answer
Web scraping with cpp
C++
3 votes188 views2 answers
Convert whole string to uppercase c++
C++
0 vote142 views1 answer
Finding nth most rare element code in c++
C++
1 vote183 views1 answer
Rotate in c++
C++
0 vote150 views2 answers
How to use decrement operator in c++
C++
0 vote146 views1 answer
Iterate const vector
C++
0 vote157 views1 answer
Error: ‘CV_WINDOW_AUTOSIZE’ was not declared in this scope
C++
0 vote161 views1 answer
What is imposter syndrome
C++
3 votes153 views2 answers
All of the stars lyrics
C++
0 vote170 views1 answer
Hpp files
C++