Number of Rectangles in a Circle
Given a circular sheet of radius, r. Find the total number of rectangles with integral length and width that can be […]
633. Sum of Square Numbers
Given a non-negative integer c, decide whether there’re two integers a and b such that a2 + b2 = c.Example 1: Input: c = 5 Output: true Explanation:
Check If two Line segments Intersect
Given the coordinates of the endpoints(p1,q1, and p2,q2) of the two line segments. Check if they intersect or not. If
330. Patching Array
Given a sorted integer array nums and an integer n, add/patch elements to the array such that any number in the range [1, n] inclusive
Prime Pair with Target Sum
Given a number n, find out if n can be expressed as a+b, where both a and b are prime
Mobile Numeric Keypad
There is a standard numeric keypad on a mobile phone. You can only press the current button or buttons that