Cannot find whats wrong with the code

#1

in question “Redundant Parentheses”, my code runs fine but still it got wrong testcases after submitting. please tell me whats wrong with the code.
my code: https://ide.codingblocks.com/s/108963

#2

@zodiac hey Shantanu there is only one mistake in your code in the question given “Not Duplicates”. but you printing “Not Duplicate”