题解 | #去除字符串中重复的字符#

#include <iostream>
#include <set>
// write your code here......

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]);
    }
    for(auto iter = s.begin(); iter != s.end(); iter++){
        cout << *iter ;
    }

    return 0;
}