#include<bits/stdc++.h>
using namespace std;
string compress()    
{
	string s="",str = "";  
	char c;  
	int D;  
	while(cin >> c) 
	{
		if(c == '[')   
		{
			cin >> D;
			str = compress();  
			while(D--)
			{
				s += str;    
			}
		}
		else if(c == ']')    
		{
			return s; 
		}
		else
		{
			s += c;       
		}
	} 
	return s;
}
int main()
{
	cout << compress();
	return 0;
}

按了回车不出结果

话说违规了为什么不给我说一下呜呜呜