HLD solution for Promotion Counting(Platinum) #4886
Conversation
for more information, see https://pre-commit.ci
| segtrees[i] = segTree((int)heavy_paths[i].size()); | ||
| } | ||
|
|
||
| sort(cow_proficiency.begin(), cow_proficiency.end(), greater<pair<int, int>>()); |
There was a problem hiding this comment.
sort(cow_proficiency.begin(), cow_proficiency.end(), greater()) also works btw
There was a problem hiding this comment.
it works locally but throws a compile error on usaco
There was a problem hiding this comment.
most guide code is written to be submitted in C++ 17 I'm pretty sure
cuz like, with C++ there's literally no disadvantage with going with a higher version (I'm pretty sure)
if ur curious why, it's cuz of class template argument deduction
There was a problem hiding this comment.
it still throws a compilation error on usaco's website.
There was a problem hiding this comment.
oh lol, then change it back
| } | ||
| }; | ||
|
|
||
| void dfs_hld(vector<vector<int>> &edges, vector<vector<int>> &heavy_paths, |
There was a problem hiding this comment.
ok i personally find this to be kind of ugly, ngl
IMO there's two ways to clean it up
- make these global arrays (sans might make u change it tho lol)
- lambda dfs
I would say don't change it yet, but be aware that you might be asked to later.
| int main() { | ||
| freopen("promote.in", "r", stdin); | ||
| freopen("promote.out", "w", stdout); | ||
| int n, current_value; |
There was a problem hiding this comment.
why is this initialized here
| cin >> cow_proficiency[i].first; | ||
| cow_proficiency[i].second = i; | ||
| } | ||
| vector edges(n, vector<int>()), heavy_paths(n, vector<int>()); |
There was a problem hiding this comment.
make these vector declarations on separate lines
| } | ||
| vector edges(n, vector<int>()), heavy_paths(n, vector<int>()); | ||
|
|
||
| vector<int> sizes(n, 0), heavy_index(n, -1), path_index(n, -1), depth(n, 0), |
There was a problem hiding this comment.
same thing w/ declaring stuff on deparate lines
also, vectors autofill to 0
Place an "x" in the corresponding checkbox if it is done or does not apply to this pull request.