written test

Question

Comments

Few doubts here,

1) What is the relation of power with obstacles or power?

2) It is written that if bot crosses 3 obstacles successfully it reaches the destination, else has to cross one more obstacle, so even if there is a failure at any point bot has to cross 4 obstacles or for every new failure one new obstacle?

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That I dont know,power means like in mealy machine we add previous and present bit..
Every new failure one new obstacles

Answer 1

This might work assuming initially power of bot was 0 and power is not increasing in between transitions except the ones mentioned in question.

From level 0, with i/p  as 0 (power) the bot will hit any one amongst 3 obstacles leading to o/p power= -1. [reaches 1st level]

Since bot was not successful, so it has to cross another obstacle in level 2.

Now, while making transitions to 2nd level the bot will cross 2 other obstacles of 1st level, it will gain +2 power, but will also loose -1 on being hit by new obstacle in 2nd level.Total o/p power=-1(from previous level) +2(gain) -1(2nd level obstacle)=0

Finally, while transitioning from second level to last level, it will gain +1 for crossing alternate obstacle of level 2, o/p power=0+1=1