??? .3) Let ao, a1, A2, ..., An-1 be a given sequence of n numbers. Design a parallel algo- rithm to compute xo, X1, X2, ... , Xn-1, defined as follows: 20 = 40; i = ai - Xi-1 ??? .3) Let ao, a1, A2, ..., An-1 be a given sequence of n numbers. Design a parallel algo- rithm to compute xo, X1, X2, ... , Xn-1, defined as follows: 20 = 40; i = ai - Xi-1