Moderator-80–
“icot does not make mistakes“
1) Wow – how can I meet that guy? I never met anyone like that before.
2) There’s a poster with a SN like that, but you’re clearly not referring to him, since on the following post he starts with all of the characters on the west bank of the river, then provides a solution which begins with all characters on the east side of the river
http://www.theyeshivaworld.com/coffeeroom/topic/the-riddle-thread/page/30#post-148357
3) Did I ever tell you about the time I tested a copper tubing gas line splice with a cigarette lighter? (true story)
blinky–
How about this?
Offer the canibals some of the fine aged hard cheese that you always carry with you. Once they have eaten, point out that they must now wait six hours until they eat meat. You now have a six-hour window in which to cross safely.
Ok, Ok…
we have three canibals and three tourists on the east side of the river, needing to cross to the west bank in a two-person canoe.
There can never be tourists on the same side of the river as a larger number of canibals.
Key:
C = canibal
T = tourist
W = west side of river
E = east side of river
1) 2 canibals cross together
result – e=3t,1c w=0t,2c
2) 1 canibal comes back alone.
result – e=3t,2c w=0t,1c
3) two canibals cross together
result – e=3t,0c w=0t,3c
4) 1 canibal comes back alone.
result – e=3t,1c w=0t,2c
5) two tourists cross together
result – e=1t,1c w=2t,2c
6) 1 tourist and 1 canibal come back together.
result – e=2t,2c w=1t,1c
7) two tourists cross together
result – e=0t,2c w=3t,1c
8) 1 canibal comes back alone.
result – e=0t,3c w=3t,0c
9) two canibals cross together
result – e=0t,1c w=3t,2c
10) 1 canibal comes back alone.
result – e=0t,2c w=3t,1c
11) two canibals cross together
result – e=0t,0c w=3t,3c