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LIS - tamanho
Sobre
Calcula o tamanho da LIS
O(n log(n))
Link original: lis2.cpp
Código
template<typename T> int lis(vector<T> &v){
vector<T> ans;
for (T t : v){
// Para non-decreasing use upper_bound()
auto it = lower_bound(ans.begin(), ans.end(), t);
if (it == ans.end()) ans.push_back(t);
else *it = t;
}
return ans.size();
}