题解

#include<iostream>
#include<algorithm>
using namespace std;
int main(){
    int n=1,a[1010];
    char c;
    while(cin>>a[n]>>c){
        n++;
    }
    cin>>a[n];
    sort(a+1,a+n+1);
    cout<<'[';
    for(int i=1;i<=n;i++){
        cout<<a[i];
        if(i==n){
            cout<<']';
        }else{
            cout<<", ";
        }
    }
    return 0;
}