Function initial

CPP/searching/binary_search.cpp:21–26

	}
	void initial() {
#ifndef ONLINE_JUDGE
		freopen("input.txt", "r", stdin);
		freopen("output.txt", "w", stdout);
#endif
	}
	int main() {
		initial();
		int arr[] = {10, 13, 15, 16, 19, 30, 34, 45, 65, 34};