Submission #1124422

#	Time	Username	Problem	Language	Result	Execution time	Memory
1124422		FucKanh	Plahte (COCI17_plahte)	C++20	0 / 160	229 ms	30028 KiB

plahte

#include<bits/stdc++.h>
#define pii pair<int,int>
using namespace std;

const int maxn = 8e4 + 2;

priority_queue<pii,vector<pii>,greater<pii>> qpin,qpout;
pair<pii,pii> rec[maxn];
set<pii> ms;

int pa[maxn];
set<int> st[maxn];
tuple<int,int,int> colour[maxn];
vector<int> a[maxn];

int ans[maxn];

vector<pii> DEL[maxn];

void dfs(int u) {
    for (int v : a[u]) {
        dfs(v);
        if (st[v].size() > st[u].size()) swap(st[v],st[u]);
        for (int val : st[v]) st[u].insert(val);
    }
    ans[u] = st[u].size();
}

signed main() {
    cin.tie(0)->sync_with_stdio(0);
//    freopen("LOANGMUC.INP", "r", stdin);
//    freopen("LOANGMUC.OUT", "w", stdout);
    int n,m; cin >> n >> m;
    for (int i = 1; i <= n; i++) {
        int x,y; cin >> x >> y;
        int x2,y2; cin >> x2 >> y2;
        qpin.push({x,-i});
        qpout.push({x2,-i});
        rec[i].first = {x,y};
        rec[i].second = {x2,y2};
    }
    for (int i = 1; i <= m; i++) {
        int x,y,c; cin >> x >> y >> c;
        colour[i] = make_tuple(x,y,c);
        qpin.push({x,i});
    }
    while (qpin.size()) {
//        cerr << ":::::: " << qpin.size() << endl;
//        for (pii tmp :  ms) {
//            cerr << tmp.first << " " << tmp.second << endl;
//        }
        if (qpout.empty() || qpin.top().first <= qpout.top().first) {
            int id = qpin.top().second;
            qpin.pop();
//            cerr << "in: " << id << " " << qpin.size() << endl;
            if (id > 0) {
                int x,y,c; tie(x,y,c) = colour[id];
                set<pii>::iterator p = ms.lower_bound(make_pair(y,0));
                if (p!=ms.end()) {
                    if (y < rec[p->second].first.second ) continue;
                    st[p->second].insert(c);
//                    cerr << ":: " << p->second << endl;
                }
                continue;
            }
            id = -id;
            set<pii>::iterator p = ms.upper_bound(make_pair(rec[id].second.second,0));
            if (p!=ms.end()) {
                pa[id] = p->second;

                if (rec[id].first.second <= rec[pa[id]].first.second ) continue;

                a[pa[id]].push_back(id);

                if (rec[id].first.second > rec[pa[id]].first.second) {
                    ms.insert(make_pair(rec[id].first.second - 1, pa[id]));
                    DEL[id].push_back(make_pair(rec[id].first.second - 1, pa[id]));
                }
            }
            ms.insert(make_pair(rec[id].second.second, id));
        }
        else {
            int id = qpout.top().second;
//            cerr << "out: " << id << endl;
            qpout.pop();
            id = -id;
            for (pii tmp : DEL[id]) {
//                cerr << tmp.second << endl;
                ms.erase(tmp);
            }
            ms.erase(make_pair(rec[id].second.second,id));
//            cerr << "done " << rec[id].second.second << " " << id << endl;
        }
    }
//    for (int i = 1; i <= n; i++) {
//        cerr << i << ": " << pa[i] << endl;
//        for (int val : st[i]) {
//            cerr << "::: " << val << endl;
//        }
//    }

    for (int i =1; i <= n; i++) {
        if (pa[i]==0) dfs(i);
    }
//    cerr << ": " << n << endl;
    for (int i = 1; i <= n; i++) {
        cout << ans[i] << '\n';
    }
}

• Subtask 1: 0 / 32
• Subtask 2: 0 / 32
• Subtask 3: 0 / 32
• Subtask 4: 0 / 32
• Subtask 5: 0 / 32