Problems solved: 586
Rank by points: #13
Total points:
124.25
Contribution points:
5
8 contests written
Rank by rating: #6
Rating: 2494
Min. rating: 1939
Max rating: 2562
From Trường THPT chuyên Bình Long, Bình Phước
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Traning IOI
vector<pair<int,int>> findTree(vector<int> vec) {
sort(vec.begin(), vec.end(), [&] (int u, int v) {
return sta[u] < sta[v];
});
int sz = vec.size();
for(int i = 1; i <= sz - 1; i++) {
vec.push_back(lca(vec[i - 1], vec[i]));
}
sort(vec.begin(), vec.end(), [&] (int u, int v) {
return sta[u] < sta[v];
});
vec.resize(distance(vec.begin(), unique(vec.begin(), vec.end())));
}
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