## Postfix Notation

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Points: 7
Time limit: 1.4s
Memory limit: 64M

Author:
Problem types

We are familiar with infix notation for representing expressions, where the operator is placed infix between the operands, as in 5 * 5. Given an expression in postfix notation, such as 5 5 *, evaluate the expression and print it to standard output, rounded to one decimal place.

Valid operands are * (multiplication), / (division), + (addition), - (subtraction), % (mod), and ^ (exponentiation).

#### Input Specification

A valid postfix expression. The input will have no more than characters, and the value of each number in the input and each intermediate result will be less than or equal to .

#### Output Specification

The result of the evaluation. The answer will be considered correct if its absolute or relative error does not exceed .

#### Sample Input 1

5 5 +

#### Sample Output 1

10.0

#### Sample Input 2

5 5 + 6 * 8 -

#### Sample Output 2

52.0

• commented on July 29, 2022, 8:38 a.m.

DMOJ should really show us the input they used so that way it's must faster and time-saving to change the code

• commented on July 28, 2022, 10:46 p.m.

Anyone know the input for Test Case #3? I'm failing that test case.

• commented on Aug. 25, 2017, 11:23 a.m.

input

what is the type of numbers in input ??

• commented on Aug. 25, 2017, 12:41 p.m.

Just use floating point

• commented on Sept. 13, 2014, 8:59 p.m. edit 2