Given the input inStr, give the boolean output out indicating whether all the parentheses are balanced.
Examples:
- If inStr is '(()', the output is false.
- If inStr is '(xyz)(ab)' the output is true.
- If inStr is ')(', the output is false.
The string may include characters other than ( and ), but you should ignore them.
Incidentally, this problem was inspired from the Rosetta Code site. Why not create a few problems of your own by poking around the tasks at Rosetta Code?
Solution Stats
Problem Comments
Solution Comments
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1 Comment
Dajun
on 11 Aug 2013
Wrong solution.
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1 Comment
Jan Orwat
on 20 Jul 2013
it doesn't work in some cases not included in test suite. for example:
inStr = '(z*(a-(x+3))/(y)*z)';
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1 Comment
Khaled Hamed
on 28 Jul 2012
Seems to fail for inStr='(' , '((', etc.
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1 Comment
Mathias
on 19 Mar 2012
I admit this is cheating, but I think it also stresses the need for more tests in the suite. Also, not all the cases should necessarily be visible, so you can't adapt a solution like this.
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1 Comment
Mathias
on 19 Mar 2012
This solution fails for the input ')()', i.e. it returns true when it should return false.
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1 Comment
Mathias
on 19 Mar 2012
This solution fails for the input '(()', i.e. it returns true when it should return false.
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1 Comment
Mathias
on 19 Mar 2012
This solution fails for the input '(()', i.e. it returns true when it should return false.
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1 Comment
Yuval Cohen
on 26 Jan 2012
This entry is incorrect. It fails the simple case of:
isBalanced('(')
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