| if (ub >= lb) | |
| for (int c0 = 1; c0 <= ub; c0 += 1) | |
| for (int c1 = c0; c1 <= n; c1 += 1) { | |
| if (c0 >= lb && c1 >= c0 + 1) { | |
| s0(c0, c1); | |
| if (n >= ub + 1) | |
| s2(c0, c1); | |
| } else if (lb >= c0 + 1) | |
| s3(c0, c1, lb, c0, c1); | |
| for (int c3 = max(lb, c0); c3 <= ub; c3 += 1) | |
| s1(c0, c1, c3); | |
| } |