How many rectangles are there in an m × n grid ?
For example, if m=1 & n=2, we have 3 rectangles.
Good one :)
Test if a Number is a Palindrome without using any String Operations
Similar Triangles - find the height of the tree
Rotate input square matrix 90 degrees CCW without rot90
Area of an Isoceles Triangle
Speed of light:Experiment
rectangle in circle
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