题解 | 去除字符串中重复的字符

#include <iostream>
// write your code here......
#include <set>
using namespace std;

int main() {

    char str[100] = { 0 };
    cin.getline(str, sizeof(str));

    // write your code here......
    set<char>s;
    for(int i=0;str[i] != '\0';i++)
    {
        s.insert(str[i]);
    }

    set<char>::iterator iter = s.begin();
    while(iter != s.end())
    {
        cout<<*iter;
        iter++;
    }


    

    return 0;
}