Submission #1230463

#	Time	Username	Problem	Language	Result	Execution time	Memory
1230463		pannenkoek	trapezoid (balkan11_trapezoid)	C++20	14 / 100	509 ms	62544 KiB

trapezoid

#include <bits/stdc++.h>
using namespace std;

#define rep(i, a, b) for(int i = (a); i < (b); i++)
#define pb push_back
#define fi first
#define se second

using ll = long long;
using ld = long double;
using pii = pair<ll, ll>;

const int MAXN = 1e5 + 5;
int n, N;
array<int, 4> points[MAXN];
set<vector<int>> events;
set<int> num;
map<int, int> compress;
pii seg[MAXN * 16];
pii smaller[MAXN];

pii comp(pii a, pii b){
    if(a.fi == b.fi) return {a.fi, a.se + b.se};
    if(a.fi > b.fi) return a;
    return b;
}

void insert(int i, int l, int r, int pos, pii val){
    if(l == r){
        seg[i] = comp(seg[i], val);
        return;
    }
    int mid = (l + r) / 2;
    if(pos <= mid) insert(i * 2, l, mid, pos, val);
    else insert(i * 2 + 1, mid + 1, r, pos, val);
    seg[i] = comp(seg[i * 2], seg[i * 2 + 1]);
}

pii query(int i, int l, int r, int ql, int qr){
    if(qr < l || ql > r) return {0, 0};
    if(ql <= l && r <= qr) return seg[i];
    int mid = (l + r) / 2;
    if(qr <= mid) return query(i * 2, l, mid, ql, qr);
    if(ql > mid) return query(i * 2 + 1, mid + 1, r, ql, qr);
    return comp(query(i * 2, l, mid, ql, qr), query(i * 2 + 1, mid + 1, r, ql, qr));
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    cin >> n;
    rep(i, 0, n){
        int a, b, c, d;
        cin >> a >> b >> c >> d;
        points[i] = {a, b, c, d};
        events.insert({a, 1, i});
        events.insert({b, 2, i});
        num.insert(a);
        num.insert(b);
        num.insert(c);
        num.insert(d);
    }

    
    int cnt = 1;
    for(auto x : num)
        compress[x] = cnt++;

    N = 1;
    while(N < cnt) N *= 2;

    insert(1, 0, N - 1, 0, {0, 1});

    for(auto event : events){
        int type = event[1];
        int i = event[2];
        auto [a, b, c, d] = points[i];
        a = compress[a];
        b = compress[b];
        c = compress[c];
        d = compress[d];
        if(type == 1){
            smaller[i] = query(1, 0, N - 1, 0, c - 1);
            smaller[i].fi += 1;
        } else {
            insert(1, 0, N - 1, d, smaller[i]);
        }
    }

    pii res = query(1, 0, N - 1, 0, N - 1);
    cout << res.fi << " " << res.se << "\n";

    return 0;
}

• Subtask 1: 14 / 100