문제: 11758번: CCW  #include using namespace std;int main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); vector> lines(3); for (int i = 0; i > x >> y; lines[i] = { x, y }; } pair a = { lines[1].first - lines[0].first, lines[1].second - lines[0].second }; pair b = { lines[2].first - lines[1].first, lines[2].second - lines[1].second }; int c = { a.fir..