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ilpropheta/Removing all adjacent duplicates from a string in linear time and space.cpp Secret

Created September 29, 2016 16:47
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Removing all adjacent duplicates from a string in linear time and space.cpp
string S; cin >> S;
deque<char> st;
for (auto c : S)
{
if (!st.empty() && st.back() == c)
st.pop_back();
else
st.push_back(c);
}
if (st.empty())
cout << "Empty String";
else
{
for (auto c : st)
cout << c;
}
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