ONP - Transform the Expression
Transform the algebraic expression with brackets into RPN form (Reverse Polish Notation). Two-argument operators: +, -, *, /, ^ (priority from the lowest to the highest), brackets ( ). Operands: only letters: a, b ... z. Assume that there is only one RPN form (no expressions like a*b*c).
Input
t [the number of expressions <= 100] expression [length <= 400] [other expressions]
Text grouped in [ ] does not appear in the input file.
Output
The expressions in RPN form, one per line.
Example
Input: 3 (a+(b*c)) ((a+b)*(z+x)) ((a+t)*((b+(a+c))^(c+d))) Output: abc*+ ab+zx+* at+bac++cd+^*
hide comments
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aveshmeena:
2015-06-12 06:56:34
anyone done this is #c |
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candide:
2015-06-06 12:33:41
RPN is a little cryptic, isn't it? IMO there are many spoj problems giving more fun and less popular so why this question is so popular (rank 6)?
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theplaymaker:
2015-05-20 09:12:13
You will step up from amateur level after solving this |
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karthik1997:
2015-05-17 18:04:07
my code went well in ideone.but its not working in this spoj compiler .and i did it in c
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roronoa_jimmy0:
2015-04-14 09:58:55
where can we get its testing data, |
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ARS Rana:
2015-04-12 18:37:27
for input a*b*c or a+b+c or a^b^c
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VigneshR:
2015-03-24 15:48:32
Guys, My program works fine ideone. But I get sigsev in SPOJ. I am not sure what is the problem. SPOJ should say for what input it fails. Failing to do that makes it less interesting to continue in SPOJ. |
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Vijay:
2015-03-18 17:09:15
Guys, for the test cases given above my code returns correct results in spite of which I get wrong answer as result. Can anyone please help? |
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Tony T.:
2015-03-17 06:47:14
Spent a lot of time fiddling with scanf for strings in ideone. Led to runtime errors.
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sumit suthar:
2015-03-02 07:17:44
no need to check precedence.nice problem.learn a lot.
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| Added by: | mima |
| Date: | 2004-05-01 |
| Time limit: | 5s |
| Source limit: | 50000B |
| Memory limit: | 1536MB |
| Cluster: | Cube (Intel G860) |
| Languages: | All except: NODEJS PERL6 VB.NET |
| Resource: | - |
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