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public static countPaths(int n, int m) You are standing at the point (n,m) of the grid of positive integers and want to go to origin
public static countPaths(int n, int m) You are standing at the point (n,m) of the grid of positive integers and want to go to origin (0,0) by taking steps either to left or down: that is, from each point (n,m) you are allowed to move either to the point (n1,m) or the point (n,m-1). Implement the method that based on recursion counts the number of different paths from the point (n,m) to the origin.
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