DO in C++

2. In this problem, we want to numerically compute " : Generate 2n samples: n independent Xis,1in, Xiu(0,1);n independent Yis,1in,Yiu(0,1). Moreover, (X1,xn) is independent of (Y1,Yn). Then, we get n points (x1,Y1),(x2,Y2),(Xn,Yn) in the unit squere [0,1][0,1] Compute the \# of points such that xi2+yi2