Submission #567370

#	Time	Username	Problem	Language	Result	Execution time	Memory
567370		hgmhc	trapezoid (balkan11_trapezoid)	C++17	45 / 100	1094 ms	4368 KiB

trapezoid

#include <bits/stdc++.h>
using namespace std; using ii = pair<int,int>; using ll = long long;
void o_o(){ cerr << endl; }
template <class H, class...T> void o_o(H h,T...t) { cerr << ' ' << h; o_o(t...); }
#define debug(...) cerr<<'['<<#__VA_ARGS__<<"]:",o_o(__VA_ARGS__)
#define rep(i,a,b) for (auto i = (a); i <= (b); ++i)
#define all(x) (x).begin(), (x).end()
#define size(x) int((x).size())
#define fi first
#define se second
#define Mup(x,y) x = max(x,y)

const int N = 1e5+3;
int n;
pair<ii,ii> t[N];

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> n;
    vector<int> xs, ys;
    rep(i,1,n) {
        cin >> t[i].fi.fi >> t[i].se.fi;
        xs.push_back(t[i].fi.fi), xs.push_back(t[i].se.fi);
        cin >> t[i].fi.se >> t[i].se.se;
        ys.push_back(t[i].fi.se), ys.push_back(t[i].se.se);
    }
    sort(all(xs)), xs.erase(unique(all(xs)),end(xs));
    sort(all(ys)), ys.erase(unique(all(ys)),end(ys));
    rep(i,1,n) {
        t[i].fi.fi = lower_bound(all(xs),t[i].fi.fi)-begin(xs);
        t[i].fi.se = lower_bound(all(ys),t[i].fi.se)-begin(ys);
        t[i].se.fi = lower_bound(all(xs),t[i].se.fi)-begin(xs);
        t[i].se.se = lower_bound(all(ys),t[i].se.se)-begin(ys);
    }
    sort(t+1,t+n+1);
    int lis[N] {0,}, cnt[N] {0,};
    int ans1 = 0, ans2 = 0;
    rep(i,1,n) {
        lis[i] = 1, cnt[i] = 1;
        rep(j,1,n-1) {
            if (t[j].se.fi < t[i].fi.fi and t[j].se.se < t[i].fi.se) {
                if (lis[i] < lis[j]+1) {
                    lis[i] = lis[j]+1;
                    cnt[i] = cnt[j];
                } else if (lis[i] == lis[j]+1)
                    cnt[i] = (cnt[i]+cnt[j])%30013;
            }
        }
        Mup(ans1, lis[i]);
    }
    rep(i,1,n) if (ans1 == lis[i])
        ans2 = (ans2+cnt[i])%30013;
    cout << ans1 << ' ' << ans2;
}

• Subtask 1: 45 / 100