Richard Karp Alive
Listed 21 NP-complete problems (1972) — the taxonomy of hardness every programmer cites when giving up gracefully.
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Proved 21 problems NP-complete (1972) — 'Reducibility Among Combinatorial Problems' — the paper that made NP-completeness the field's organizing question.\n\nTuring Award 1985; Edmonds–Karp is his flow algorithm.