Saturday, February 9, 2013

ISC PRACTICAL QUESTION



S is a string of capital alphabets, parts of which may be enclosed in brackets ( ). S is an invalid string if the brackets are nested. For example : AXB (YPT (COM)FTY) XUP is not a valid string. Write a program to
(1) Check the validity of the input string.
(2) If the string is valid, output the given string omitting the portion enclosed in brackets.

For example : Input string : COM(IP)PUTER IS JUNK (MONK) MACHINE
Output string : COMPUTER IS JUNK MACHINE
If the string is not valid, print the string and a message “Input string is not valid” and stop.

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