SPOJ.com - Problem ONP

ONP - Transform the Expression

#stack

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+^*

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	iamareebjamal: 2016-01-13 11:47:36 Runs perfectly on ideone.com SIGSEGV here <snip> Last edit: 2023-02-09 23:13:58
	cherag_0001: 2016-01-04 08:32:29 whooo hoo !! 2nd try ..// in the first try just an "endl" missing :P
	skrishna99: 2015-12-31 10:41:16 I got RTE(NZec) I tried all known options to me , finally identified that I have not pushed "-" to stack . Pretty easy problem using stacks. My first one in stack .
	ashu14: 2015-12-27 15:51:29 @yeahboy this type is not allowed.. As it can have multiple rpn forms possible!
	motasem mohammad: 2015-12-25 14:10:18 taught me how to use stack function , a good problem
	aakash_s: 2015-12-17 18:36:07 Take care of the case a+b without any brackets ...caused me several wrong answers Last edit: 2015-12-28 11:04:45
	Timmy Jose: 2015-12-13 21:25:34 Nice question - excellent motivation to revise old college stuff! :-)
	MAYANK NARULA: 2015-12-09 07:05:06 @ yeahboy ... My answer for that is abc-w-lde-fg+-h+ijk-p/^- But i am getting WRONG ANSWERS in SPOJ...!! Now i got it AC ... Can't resist making output format mistakes !! Last edit: 2015-12-09 07:10:57*
	Mayur Aggarwal: 2015-10-21 14:25:15 My code is giving correct answer on ideone but couldn't able to nail down the issue/bug for which SPOJ is giving wrong answer. few checks are given below please advise if any see any issue: All variables declared with array size 401, if(T<=100 && T >=1) //test condition if(strlen(str) <=400 && strlen(str) >=1) // input check logic seems to be correct.. As per SPOJ guidelines I can't post source code here. Please post more test cases here so that I can validate my code. Any help is appreciated. Thnaks!!
	Michael: 2015-10-12 21:04:55 In my case it's: abcwlde-fg+h+-ijk-p/*^---

Submit solution!

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:	-

Problem's scores 1 vote

Concept difficulty

23%

Implementation difficulty

24%

265 7