题解 | #去除字符串中重复的字符#

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

int main() {

    
    // write your code here......
    char str[100];
    cin.getline(str,sizeof(str));
    
    set<char>m;
     int sz = strlen(str);
      for(int i  = 0;str[i]!='\0';++i){
          m.insert(str[i]);
      }
      for(auto&s:m)
      cout<<s;

    return 0;
}