Unable to clear case 1 and 2

#1

In case 1 and 2 I’m getting the runtime error, please check my code.

#2

@satyendra4030
Consider such testcases where string starts with ‘)’ . For example
“)()”
your code give segmentation fault here because for element at index 0, your code check for stk.top() (as in line 26) but stack is empty and don’t have stk.top()

#3

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