示例1:

1,2<A>00

示例2:

1,2<A>00,3<A>00

示例3:

<B>12,1,2<B>1

示例4:

<B<12,1

输出依次如下：

#include<iostream>
#include<vector>
#include<string>


using namespace std;

/*
字符分割函数 将传入的字符串按照字符分割 放入vector中
*/
vector<string> split_str(string str_input, char c)
{
    vector<string> result;
    while(str_input.find(c) != string::npos)
    {
        int pos_index = str_input.find(c);
        cout<<"pos_index:"<<pos_index<<endl;
        string str_tmp = str_input.substr(0, pos_index);//
        cout<<"str_tmp:"<<str_tmp<<endl;
        //int digital = stoi(str_tmp);
        result.push_back(str_tmp);
         str_input = str_input.substr(pos_index+1);
        //cout<<"str_input:"<<str_input<<endl;
     }
     //int digital = stoi(str_input);
	 cout<<"str_input:"<<str_input<<endl;
     result.push_back(str_input);
    return result;
}


int main() {
    string input_str;
    getline(cin, input_str);
    vector<string> str_vec;
    str_vec = split_str(input_str, ',');
    int count = 0;
    count = str_vec.size();
    for (int index = 0; index < count; index++) 
    {
        string cur_str = str_vec[index];
        int result1 = cur_str.find("<");
        int result2 = cur_str.find(">");
		
		cout <<"result1:"<<result1<<" result2:"<<result2<<""<<endl;

        if (result1 == -1 && result2 == -1) 
        {
            //
			//cout << "case 1"<<endl;
        } 
        else if(result1>-1 && result2>-1)
        {
			//cout << "case 2"<<endl;
            char target_pos = cur_str.substr(result1 + 1, result2)[0];
            char cur_pos = index + 'A';
            if (!(target_pos >= 'A' && target_pos <= 'Z')) 
            {
                //
            }
            if (cur_pos == target_pos) 
            {
                //
            }
            int target_index = target_pos - 'A';
   
            string temp_result = "";
            temp_result += cur_str.substr(0, result1);
            temp_result += str_vec[target_index];
            temp_result += cur_str.substr(result2 + 1);
            str_vec[index] = temp_result;
        }
		else
		{
			//cout << "case 3"<<endl;
			cout << "-1"<<endl;
			exit(0);
		}
        
    }
    count = str_vec.size();
    for (int i = 0; i < count; i++) {
        cout << str_vec[i];
        if (i != count - 1) {
            cout << ",";
        }
    }
	cout<<""<<endl;

    return 0;
}