cpp-programs/balanced_parenthesis.cpp at main · aashimawadhwa/cpp-programs · GitHub

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#include <stack>

bool checkBalanced(char *exp) {
	// Write your code here

	stack <char> s;
    for(int i=0;exp[i]!='\0';i++)
    {
        if(exp[i]=='[' || exp[i]=='(' || exp[i]=='{' )
            s.push(exp[i]);
        if(s.empty() && (exp[i]==']' || exp[i]==')' || exp[i]=='}') )
            return false;


        if(exp[i]==']')
        {	if(s.top()=='[')
                  s.pop();
            else
                return false;
        }

        if(exp[i]==')')
        {      if(s.top()=='(')
                    s.pop();
        		else
                    return false;
        }

        if(exp[i]=='}')
        {	if(s.top()=='{')
            	s.pop();
        else
            return false;
        }


    }
    if(s.empty())
        return true ;
        else
            return false;
}