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Apple Interview Question for SDE1s


Country: United States
More Questions from This Interview



Comment hidden because of low score. Click to expand.
4
of 4 vote

Probability that they do not collide: 1/4
If all go in the same direction.. they will collide if they all move with unequal speeds.

- Murali Mohan January 31, 2014 | Flag Reply
Comment hidden because of low score. Click to expand.
1
of 1 vote

Each ant has 2 directions to choose (clockwise and counter clockwise), so there are 2^3=8 cases. Only 2 cases will not get collision (all clockwise, or counterclockwise). So the possibility of collision is 2/8.

- Westlake January 31, 2014 | Flag Reply
Comment hidden because of low score. Click to expand.
-2
of 2 votes

if they are moving in either clockwise or anticlockwise simultaneously with same speed then they will collide at the incenter of equilateral triangle.

- RAVI February 07, 2014 | Flag
Comment hidden because of low score. Click to expand.
0
of 0 votes

@Ravi - That will happen if they constantly travel towards each other.

- romil.bm April 14, 2015 | Flag
Comment hidden because of low score. Click to expand.
0
of 0 vote

If direction is same they never collide(here consider speed are same all the ants).
probability of do not collide is 1.

- abc January 31, 2014 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

if the ant are moving with the same speed, possibility of not collide is 2/8.
If the ant are moving with different speed, possibility of not collide is 0.

- ABCD February 01, 2015 | Flag Reply


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