문제
풀이
#include <algorithm>
#include <iostream>
#include <stack>
#include <string>
using namespace std;
void solve(void) {
string s; getline(cin, s);
int ans = 0;
stack<char> st;
for (char c : s) {
if (c == '[') st.push(c);
else st.pop();
ans = max(ans, (int)st.size());
}
cout << (1 << ans) << "\n";
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n; cin >> n;
cin.ignore();
while (n--) solve();
return 0;
}