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It is really a great solution, I just have few corrections to add:
- Stack s = new Stack();
- for(char c: expression.toCharArray())
- if(s.empty() || c!=s.peek())
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Stacks: Balanced Brackets
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It is really a great solution, I just have few corrections to add: - Stack s = new Stack(); - for(char c: expression.toCharArray()) - if(s.empty() || c!=s.peek())