About search space calculation

#1

i dont understand how to choose start and end point.

explain with this or better example
what is distance between bars are
2,4,8,10,20

then what is out start and end point.

#2

For this question, first you need to sort the given array, as :
2,4,8,10,20

So start = stall[0]= 2;
end = stall[n-1]-stall[0]=20-2=18
So search space will be 2 to 18…

For more understanding , you can refer to this video… Prateek bhaiya has already explained the problem …