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def superReducedString(s):
stack = []
for n in s:
if not stack or stack[-1] != n:
stack.append(n)
else:
stack.pop()
if not stack:
return 'Empty String'
return "".join(stack)
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Super Reduced String
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def superReducedString(s): stack = [] for n in s: if not stack or stack[-1] != n: stack.append(n) else: stack.pop() if not stack: return 'Empty String' return "".join(stack)