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The Reverse Polish Notation

How fast can you calculate in RPN?
The examples were generated by a program, note me if there's something too difficult or wrong
Quiz by
Pandryf
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Last updated: February 14, 2024
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First submittedFebruary 13, 2024
Times taken17
Average score73.3%
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RPN
Result
4 4 + 2 * 10 +
26
4 9 + 2 7 + *
117
7 9 1 * 9 * +
88
9 4 - 2 3 - +
4
8 7 + 7 6 + *
195
RPN
Result
7 9 * 1 2 ^ -
62
7 4 9 + + 7 +
27
2 7 - 5 + 5 /
0
8 1 4 1 * * +
12
2 8 + 8 7 - -
9
RPN
Result
4 1 10 * 6 + +
20
9 7 - 8 * 10 -
6
3 4 7 * 7 * +
199
6 9 * 3 / 7 +
25
8 5 5 - 2 * +
8
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2 Comments
+2
Level 63
Feb 13, 2024
explain
+2
Level 63
Feb 14, 2024
there's a stack of numbers, now reading from left to right:

1) if there's a number, you stack it on the top

2) if there's an operating sign, you do what it says with the top 2 numbers from the stack, e.g. if the top number is 2, there's a 7 right under it, and you have a "^", you raise 7 to the 2nd power and get 49 - the result replaces the numbers used to create it - in this example, the stack of [5, 12, 8, 7, 2] becomes [5, 12, 8, 49]