https://softeer.ai/practice/9498 Softeer - 현대자동차그룹 SW인재확보플랫폼 softeer.ai소스코드#include #include using namespace std;int main() { string s; cin >> s; stack stackStr; string answer; for (auto item : s) { if (item == '(') { if (stackStr.empty() == false && stackStr.top() == ')') { answer += "+("; } else { answer += "("; } stackStr.push(item); } else { if (stackStr.empty() ==..