Reverse Polish
Consider the calculation as follows :
(where X & Y are variables)
Which of the following represents the correct Reverse Polish notation for that calculation :
- A 2 X * 3 + Y / 9 +
- B 2 X 3 + * Y 9 + /
- C 2 X + 3 * Y 9 + /
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1 solution
You can use the Shunting yard algorithm to get the answer :
which is : 2 X 3 + * Y 9 + /
If you are in doubt :
2 X * 3 + Y / 9 + : is Y 3 X + 2 + 9 and 2 X + 3 * Y 9 + / is Y + 9 ( 2 + X ) ∗ 3