The use of SSA in compiler design is mainly for the intermediate code. In SSA, assignment to a variable should be mentioned with different names.

We generally use, subscript to differentiate each equation of variables.

In the above question, minimum no. of variables will be (a, b, c, d, x)

Therefore answer is 5.

We generally use, subscript to differentiate each equation of variables.

In the above question, minimum no. of variables will be (a, b, c, d, x)

Therefore answer is 5.