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Question 01
Saranya has a string of lowercase characters in range ascii['a'. 'z'] She wants to reduce the string to its shortest length by doing a series of operations. In
each operation she selects a pair of adjacent lowercase letters that match, and she deletes them. For instance, the string aab could be shortened to b in
one operation
Saranya's task is to delete as many characters as possible using this method and print the resulting string. If the final string is empty, print"-1"
Sample Input baab
Sample Output-1
sample input
aa​

Answer 1

Answer:

y3u37 6system and he is the only person in the brain 333inches who has been born and he is the only one that is a person and is a person and a new year and