by using c++ . We are given an array of n points in the plane, and the problem is to find out the closest pair of points in  the array. This problem arises in a number of applications. For example, in air-traffic control, you may  want to monitor planes that come too close together, since this may indicate a possible collision. Recall  the following formula for distance between two points p and q.  Euclidean distance d( p , q ) = sqrt[(qx − px)^2 + (qy − py)^2] The Brute force solution is O(n^2), compute the distance between each pair and return the smallest.  Find the smallest distance in O(nLogn) time using Divide and Conquer strategy.

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Use of XOR function

XOR function or exclusive OR function was introduced in Excel 2013. This function is available under excel logical functions. For the given statement, the XOR function will return true only when either of the statements is true. It returns false when both the statements are true or when both the statements are false.