for (int i = 1; i <= n; i++) { scanf("%d%d%d", &arr[i].a, &arr[i].b, &arr[i].c, &arr[i].d); l.push_front(i); } while (m--) { int x, y, flag = 0; scanf("%d%d", &x, &y); for (auto it = l.begin(); it != l.end(); it++) { if (x >= ...