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hello..

i need code for finding all possible combination of repetitive characters using recursion function.

actually the question i s "Imagine a robot sitting on upper left corner of NxN grid. the robot can only move in two direction "Right" and "Down". write a recursive function to find all possible paths that are there for robot?

the above highlighted line is the logic i figured out but i am not able to convert it to C code.

example:

n=3. then there are total 6 possible paths.

path1= RRDD

path2= RDRD

path3= RDDR

path4= DDRR

path5= DRDR

path6= DRRD

so, basicaly i want a recursive function which can do this for any value of N.?