A helicopter drops two trains, each on a parachute, onto a
straight infinite railway line. There is an undefined
distance between the two trains. Each faces the same
direction, and upon landing, the parachute attached to each
train falls to the ground next to the train and detaches.
Each train has a microchip that controls its motion. The
chips are identical. There is no way for the trains to know
where they are. You need to write the code in the chip to
make the trains bump into each other. Each line of code
takes a single clock cycle to execute.
You can use the following commands (and only these);
MF - moves the train forward
MB - moves the train backward
IF (P) - conditional that's satisfied if the train is next
to a parachute. There is no "then" to this IF statement.
GOTO
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Answer Posted / rajasekar b
D answer sanket may be wrong. U gotta program both the chips.
and u cant say "MB(T1)" to train T2 and viceversa, neither
"IF(T1 at P1)". There is no way for the trains to know where
they are.
My answer is:
MF;
i=1;
do
{
for(j=1;j<=(i*2)+1;j++)
MB;
for(j=1;j<=(i*2)+2;j++)
MF;
}While(1);
This causes both the trains to oscillate about their
respective parachutes,moving a unit length longer in forward
and backward direction for each oscillation. sure, they
gotta BUMP into each other.
My assumption:
Usual programming language constructs can be used.
Given Commands are just for controlling the train.
| Is This Answer Correct ? | 4 Yes | 11 No |
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