ASCII码排序

3
qwe
asd
zxc

e q w
a d s
c x z

 
#include<iostream>
 #include<string>
 using namespace std;
 int main()
 {
     char arr[3];
     char ch;
     int test;
     cin>>test;
     while(test--)
     {
        for(int i=0;i<3;i++)
            cin>>arr[i];
         for(int i=0;i<3;i++){
             for(int j=0;j<2-i;j++){
                 if(arr[j]>arr[j+1]){
                     ch = arr[j];
                     arr[j] = arr[j+1];
                     arr[j+1] = ch;
                 }
             }
         }

          for(int i=0;i<3;i++){
         cout<<arr[i]<<" ";
          }
     }
     cout<<endl;




     
 return 0;
 }