/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 votes306 views2 answers
Prints out the elements in the array c++
C++
1 vote279 views2 answers
How to get size of char array in c++
C++
1 vote278 views2 answers
Pain
C++
10 votes325 views2 answers
Check if char in string c++
C++
0 vote284 views1 answer
Are maps sorted c++
C++
37 votes376 views2 answers
Remove element by index from vector c++
C++
0 vote315 views1 answer
How to make dictionary of numbers in c++
C++
0 vote319 views2 answers
C++ code
C++
0 vote291 views1 answer
Linux x11 copy paste event
C++
0 vote296 views2 answers
QVariant to int
C++