Evaluate an arithmetic expression in postfix form

Implement recursion

Convert a given arithmetic expression in infix form to its evaluate postfix form

Allocate resources(like CPU)by the operating system

3,4,5,1,2

3,4,5,2,1

1,5,2,3,4

5,4,3,2,1

Radix

Breadth first search

Recursion

None of these

2, 2, 1, 1, 2

2, 2, 1, 2, 2

2, 1, 2, 2, 1

2, 1, 2, 2, 2

b a c

b c a

c a b

a b c