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tiling.java

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public class tiling {

// n is the length of the surface 2 X n

static int tilingproblem(int n){

int vert=tilingproblem(n-1);

int horiz=tilingproblem(n-2);

int totalways=vert+horiz;

return totalways;

}

public static void main(String[] args){

int n=5;

System.out.println(tilingproblem(n));

}

}