In a kingdom far far away, the King decided that the time
has come to find a husband for his princess daughter. The
King wanted to find a worthy lad for his princess, so he
promised to give his daughter away to the first young (or
old) man who would solve the puzzle that has stumped the
best of his court mathematicians for years. The puzzle is
very simple: in a palace, there are 25 rooms arranged in a
square--5 rows of rooms with 5 rooms in each row. In every
room there is a light switch which not only switches on/off
the light in that room, but also switches the lights in the
adjacent rooms--the room to the right, to the left, the
room above and the room below. Initially, all of the
lights are turned off. The goal is to turn the lights on
in every room of the palace.
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Answer Posted / pooja devraj
only 1 light need to switch on, gradually the remaining all
will become on.
1 0 0 0 0
0 0 0 0 0
0 0 0 0 0---->
0 0 0 0 0
0 0 0 0 0
1 1 0 0 0
1 0 0 0 0
0 0 0 0 0---->
0 0 0 0 0
0 0 0 0 0
1 1 1 0 0
1 1 0 0 0
1 0 0 0 0----> like this
0 0 0 0 0
0 0 0 0 0
this is the answer given by "ALPHY"
tz an excellent answer..
i agree....
bt litting frm room one takes a long tym to lite up all 25
rooms..
so to save time lets lit up the room at the center
y waste its advantage like it can lite its adjacent rooms..
quiet quick ryt.
SO.............
it can also be as...
0 0 0 0 0
0 0 0 0 0
0 0 1 0 0---->
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 1 0 0
0 1 1 1 0---->
0 0 1 0 0
0 0 0 0 0
0 0 1 0 0
0 1 1 1 0
1 1 1 1 1---->
0 1 1 1 0
0 0 1 0 0
0 1 1 1 0
1 1 1 1 1
1 1 1 1 1---->
1 1 1 1 1
0 1 1 1 0
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1---->
1 1 1 1 1
1 1 1 1 1
ryt?? :)
| Is This Answer Correct ? | 3 Yes | 6 No |
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