Submission #466726

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
466726	2021-08-20 14:12:46	palilo	먼 별 (KOI16_dist)	C++17	2 / 100	68 ms	1228 KiB

dist

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#include <bits/stdc++.h>
using namespace std;
template <class T>
bool chmin(T& _old, T _new) { return _old > _new && (_old = _new, true); }
template <class T>
bool chmax(T& _old, T _new) { return _old < _new && (_old = _new, true); }
struct star_t {
    int x, y, dx, dy;
};
int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
#ifdef palilo
    freopen("in", "r", stdin);
    freopen("out", "w", stdout);
#endif
    int n, t;
    cin >> n >> t;
    vector<star_t> a(n);
    for (auto& [x, y, dx, dy] : a) {
        cin >> x >> y >> dx >> dy;
    }
    auto cross2 = [&](const pair<int, int>& u, const pair<int, int>& v) {
        return int64_t(u.first) * v.second - int64_t(u.second) * v.first;
    };
    auto cross3 = [&](const pair<int, int>& o, const pair<int, int>& u, const pair<int, int>& v) {
        return int64_t(u.first - o.first) * (v.second - o.second) -
               int64_t(u.second - o.second) * (v.first - o.first);
 
 
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• Subtask 1: 2 / 2
• Subtask 2: 0 / 40
• Subtask 3: 0 / 39
• Subtask 4: 0 / 19