how to solve it cant understand the logic
Grand temple ques
@Sajid07 This ques is based on greedy approach. All we need to do is just store all the X and Y coordinates and then sort them. Then we will calculate maximum ΔX and ΔY where ΔX = (Xi -Xi-1) & ΔY = (Yi -Yi-1). Then the area will be (ΔY-1)*(ΔX-1).
We have to find the maximum area of land(so we exclude the rivers).
Clearly the maximum area would be between the intersection points of (2,4) and (5,2) for the given sample testcase.
Area = | 5 - 2 - 1 | * | 2 - 4 - 1| = 2 * 1 = 2
We implement the formula ,
Area = abs( y2 - y1 - 1) * abs( x2 - x1 - 1)//take abs as area cant be negative
We add an extra -1 in our calculation since we should consider the river area. If we simply implement (y2 - y1) or (x2 - x1) then we would end up counting 1 edge of the vertical river and 1 edge of the horizontal river. We should not include that area as the temple cannot be built over the river edge.
what data type should i use to create pairs?
you can use two different arrays. One for x cood and other for y cood.
I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.
On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.