public int maxR(int[] v){
		return maxR2(v, 1, 0);
	}
	
	private int maxR2(int[] v, int y, int z){
		int x = z;
		if(x == v.length-1){
		}
		else{
			if( v[x] < v[y]){
				x = y;
				maxR2(v, y+1, x);
			}
		}
		return v[x];
	}