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Good simple recursive problem, string recursive training

2022-04-23 05:08:00 【FOWng_ lp】

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Topic link

https://www.luogu.com.cn/problem/P1928
Click here

Code

Easy to understand code answer

#include<cstdio>
#include<iostream>
#include<cmath>
#include<algorithm>
#include<string>
using namespace std;
string dg(){
    
	int cnt;
	string s="",ss;
	char c;
	while(cin >> c){
    
		if(c=='['){
    
			cin >> cnt;
			ss = dg();
			while(cnt--)s+=ss;
		}
		else {
    
			if(c==']')return s;
			else s+=c;
		}
	}
}
int main(){
    
	cout << dg();
	return 0;
}