<b_jonas> `` set -e; f=/hackenv/bin/bfbotquine; d=/hackenv/bin/STOP; >$d echo $\'#!/bin/sh\\nrm -fv \'"$f"; >$f echo $\'#!/bin/sh\\nsleep 50; echo ":"="hackesoquine"; sleep 20\'; chmod -c a+x $d $f

A promise problem is one that happens because you promise too much. Their reduction to NP is p. difficult.