1for (int c0 = 1; c0 <= n; c0 += 1) {2 S1(c0, c0);3 for (int c1 = c0; c1 <= n; c1 += 1)4 S2(c0, c1);5 S3(c0, n);6}7for (int c0 = n + 1; c0 <= m; c0 += 1)8 S3(c0, n);9
