Monistus

input/code.cpp: In function 'bool isClear(std::string)':
input/code.cpp:10:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |         for(int i=0;i<s.size();i++){
      |                     ~^~~~~~~~~
input/code.cpp: In function 'std::string dfs(std::string)':
input/code.cpp:40:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         for(int i=0;i<s.size();i++){
      |                     ~^~~~~~~~~
input/code.cpp:43:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |                         if(i+m>=s.size())
      |                            ~~~^~~~~~~~~~

#include<bits/stdc++.h>
using namespace std;
string str,str_tmp;

bool isDigit(char c){
	return c>='0'&&c<='9';
}

bool isClear(string s){
	for(int i=0;i<s.size();i++){
		if(isDigit(s[i]))return false;
	}
	return true;
}

//void dfs(string s){
////	cout<<s<<endl;
//	if(s.size()<=1){
//		return;
//	}
//	for(int i=0;i<s.size();i++){
//		if(isDigit(s[i])){
//			int m=s[i]-'0';
//			if(i+m>=s.size()){
//				str_tmp+=s[i];
//			}
//			else dfs(s.substr(i+1,m));
//		}
//		else{
//			str_tmp+=s[i];
//		}
//	}
//}

string dfs(string s){
	if(s.size()<=1){
		return s;
	}
	string result="";
	for(int i=0;i<s.size();i++){
		if(isDigit(s[i])){
			int m=s[i]-'0';
			if(i+m>=s.size())
				result+=dfs(s.substr(i,1));
			else
				result+=dfs(s.substr(i+1,m));
		}
		else{
			result+=dfs(s.substr(i,1));
		}
	}
	return result;
}

int main(){
	cin>>str;
	while(!isClear(str)){
		str=dfs(str);
	}
	cout<<str<<endl;
	return 0;
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: WRONG ANSWER

Test 4

Group: 1, 2

Verdict: ACCEPTED

Test 5

Group: 1, 2

Verdict: ACCEPTED

Test 6

Group: 1, 2

Verdict: ACCEPTED

Test 7

Group: 1, 2

Verdict: WRONG ANSWER

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: WRONG ANSWER

Test 10

Group: 2

Verdict: WRONG ANSWER

Test 11

Group: 2

Verdict: ACCEPTED

Test 12

Group: 2

Verdict: ACCEPTED

Test 13

Group: 2

Verdict: ACCEPTED

Test 14

Group: 2

Verdict: ACCEPTED