Given two integers L and B denoting the length and breadth of a rectangle respectively. The task is to calculate the sum of the area of all possible squares that comes into the rectangle.
Input: L = 4, B = 3 Output: 54 Input: L = 2, B = 5 Output: 26
The idea is to observe the count of number of squares in a rectangle.
Now, the number of squares of side 1 will be 12 as there will be two cases one as squares of 1-unit sides along the horizontal(3) and second case as squares of 1-unit sides along the vertical(4). That gives us 3*4 = 12 squares.
When the side is 2 units, one case will be as squares of side of 2 units along only one place horizontally and second case as two places vertically. So the number of squares = 6
So we can deduce that,
Number of squares of size 1*1 will be L*B
Number of squares of size 2*2 will be (L-1)(B-1)
Therefore, the number of squares with size will be:
Number of square of size K = (L-K+1)*(B-K+1)
Therefore, area of total number of squares of size K will be:
Area of total number of square of size K = (L-K+1)*(B-K+1)*K*K
Below is the implementation of above idea:
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