/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

0 vote368 views1 answer
Argument to number C++
C++
0 vote312 views1 answer
1ll
C++
0 vote387 views10 answers
Loop
C++
1 vote345 views1 answer
HOW TO TURN LINK TO BUTTON IN MVC
C++
0 vote347 views1 answer
Print number with leading zeros
C++
0 vote333 views2 answers
\0 in c++
C++
5 votes453 views6 answers
String
C++
1 vote331 views3 answers
Print 2d array c++
C++
1 vote348 views1 answer
C++ vector decimal to binary
C++
4 votes373 views2 answers
Check uppercase c++
C++