03d
unknown
c_cpp
2 years ago
393 B
1
Indexable
Never
#include <iostream> using namespace std; int main() { freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); int level, cur = -1; cin >> level; string brackets, ans=""; cin >> brackets; for (int i = 0; i < brackets.size(); i++) { if (brackets[i] == '(') cur++; if (cur < level) ans += brackets[i]; if (brackets[i] == ')') cur--; } cout << ans; return 0; }