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Recursively remove all adjacent duplicates.py
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Recursively remove all adjacent duplicates.py
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"""
https://practice.geeksforgeeks.org/problems/recursively-remove-all-adjacent-duplicates/0
Given a string s, recursively remove adjacent duplicate characters from the string s. The output string should not have any adjacent duplicates.
"""
__author__ = 'abhireddy96'
import string
class Solution:
def removeDuplicates(self, s: string) -> string:
res = []
i = 0
# Iterate over each character in string
while i < len(s):
# If current character is last character of result string
if res and res[-1] == s[i]:
# Loop till next different character
j = i+1
while j < len(s):
if s[i] == s[j]:
j += 1
else:
break
# Remove last character from resultant string
# Assign index of different character
i = j
res.pop()
# If not, append character to resultant string
else:
res.append(s[i])
i += 1
return "".join(res)
if __name__ == "__main__":
for _ in range(int(input())):
print(Solution().removeDuplicates(input()))