If i have a string is there a built in function to sort the characters or would I have to write my own?

for example:

string word = "dabc";

I would want to change it so that:

string sortedWord = "abcd";

Maybe using char is a better option? How would I do this in C++?

2

4 Answers

There is a sorting algorithm in the standard library, in the header <algorithm>. It sorts inplace, so if you do the following, your original word will become sorted.

std::sort(word.begin(), word.end());

If you don't want to lose the original, make a copy first.

std::string sortedWord = word;
std::sort(sortedWord.begin(), sortedWord.end());

3

std::sort(str.begin(), str.end());

See here

1

You have to include sort function which is in algorithm header file which is a standard template library in c++.

Usage: std::sort(str.begin(), str.end());

#include <iostream>
#include <algorithm> // this header is required for std::sort to work
int main()
{ std::string s = "dacb"; std::sort(s.begin(), s.end()); std::cout << s << std::endl; return 0;
}

OUTPUT:

abcd

You can use sort() function. sort() exists in algorithm header file

 #include<bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(false); string str = "sharlock"; sort(str.begin(), str.end()); cout<<str<<endl; return 0; }

Output:

achklors

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