/C++/How to find total numbe of distinct characters in a string in c

How to find total numbe of distinct characters in a string in c

#include <iostream>
#include <algorithm>
using namespace std;

int main()
{
    string username;
    int count = 0;
    cin >> username;
    sort(username.begin(),username.end()); //for understanding purpose, i do it
    int slen = username.length();
    //cout << username << endl;
    for(int i = 0; i < slen; i++)
    {
        
            if(username[i] != username[i-1])
            {
                count++;
            }
        
    }
    
    cout << "Total number of distinct characters  :  " << count << endl;
    return 0;
}

Similar codes

3 votes221 views2 answers
C++ round number to whole
C++
-1 vote168 views2 answers
Convert c++ to mips
C++
0 vote167 views1 answer
How to declare a 2d boolean vector in c++
C++
12 votes179 views3 answers
Max element in array c++ stl
C++
2 votes182 views1 answer
Null c++
C++
0 vote192 views2 answers
Float to byte array and back c++ with memcpy command
C++
0 vote169 views1 answer
Mid of linked list
C++
0 vote557 views1 answer
Set keybinding for compiling c++ program in neovim
C++
14 votes189 views1 answer
Array 2d dynamic allocation c++
C++
-3 votes211 views1 answer
Array c plus plus
C++