# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
75098 | Yehezkiel | 괄호 문자열 (CEOI16_match) | C++11 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
return characters.empty();
}
bool possible(){
stack <char> temp;
return coba(0,temp);
}
string makeAns(){
string ret="";
stack <char> characters;
for(int i = 0; i < n; i++) {
characters.push(input[i]);
if(characters.empty()||characters.top() != input[i]) {
ret += "(";
} else if(coba(i+1,characters)) {
ret += "(";
} else {
characters.pop();
characters.pop();
ret += ")";
}
}
return ret;
}
int main()
{
cin>>input;
n = input.length();
if (possible()) {
cout<<makeAns()<<endl;
} else {
printf("-1\n");
}
}