Submission #750918

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
750918	2023-05-30 14:05:22	drdilyor	Drawing (CEOI22_drawing)	C++17	30 / 100	1576 ms	19120 KiB

Main

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#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int inf = 1e9;
const ll infl = 1e18;
mt19937 rng;
using pt = pair<int,int>;
bool ccw(pt A, pt B, pt C) {
    return ll(C.second-A.second) * (B.first-A.first) > ll(B.second-A.second) * (C.first-A.first);
}
bool intersect(pt A, pt B, pt C, pt D) {
    return ccw(A, C, D) != ccw(B, C, D) && ccw(A, B, C) != ccw(A, B, D);
}
int main() {
    int n;
    cin >> n;
    vector<vector<int>> adj(n);
    vector<pair<int,int>> pts(n);
    for (int i = 1; i < n; i++) {
        int u, v;
        cin >> u >> v;
        u--;v--;
 
 
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• Subtask 1: 0 / 10
• Subtask 2: 15 / 15
• Subtask 3: 15 / 15
• Subtask 4: 0 / 35
• Subtask 5: 0 / 25