Submission #1109671

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1109671	2024-11-07T09:20:22 Z	farica	trapezoid (balkan11_trapezoid)	C++14	73 / 100	205 ms	32944 KB

trapezoid

#include <bits/stdc++.h>
#define long long int

using namespace std;

const int MOD = 30013;

struct Node {
    int ans,ways;
};

vector<Node>segm;

Node comb(Node x, Node y) {
    Node fin;
    if(x.ans == y.ans) {
        fin.ans = x.ans;
        fin.ways = (x.ways + y.ways) % MOD;
        return fin;
    } else if(x.ans > y.ans) return x;
    else return y;
}

void update(int pos, int l, int r, int x, Node val) {
    if(l==r) {
        segm[pos] = val;
        return;
    }
    int m = (l+r)/2;
    if(x <= m) update(2*pos+1, l, m, x, val);
    else update(2*pos+2, m+1, r, x, val);
    segm[pos] = comb(segm[2*pos+1], segm[2*pos+2]);
}

Node query(int pos, int l, int r, int L) {
    if(l >= L) return segm[pos];
    int m = (l+r)/2;
    if(m >= L) return comb(query(2*pos+1, l, m, L), segm[2*pos+2]);
    else return query(2*pos+2, m+1, r, L);
}

void solve() {
    int n;
    cin >> n;
    Node tmp;
    tmp.ans = tmp.ways = 0;
    segm.assign(10*n, tmp);
    tmp.ans = tmp.ways = 1;
    map<int,vector<int>>upd, que;
    vector<array<int,4>>V(n);
    vector<int>c(n);
    vector<Node>ans(n, tmp);
    for(int i=0; i<n; ++i) {
        cin >> V[i][1] >> V[i][2] >> V[i][0] >> V[i][3];
        c[i] = V[i][0];
    }
    sort(V.begin(), V.end());
    sort(c.begin(), c.end());
    for(int i=0; i<n; ++i) {
        que[V[i][2]].push_back(i);
        upd[V[i][1]].push_back(i);
    }
    auto it = upd.end(), it2 = que.end();
    --it, --it2;
    bool finish = 0;
    while(true) {
        while(!finish && it->first <= it2->first) {
            for(int x: it2->second) {
                int lb = upper_bound(c.begin(), c.end(), V[x][3]) - c.begin();
                if(lb != n) {
                    ans[x] = query(1, 0, n-1, lb);
                    ++ans[x].ans;
                }
            }
            if(it2 == que.begin()) {
                finish = 1;
                break;
            }
            --it2;
        }
        for(int x: it->second) {
            update(1, 0, n-1, x, ans[x]);
        }
        if(it == upd.begin()) break;
        --it;
    }
    while(!finish) {
        for(int x: it2->second) {
            int lb = upper_bound(c.begin(), c.end(), V[x][3]) - c.begin();
            if(lb != n) {
                ans[x] = query(1, 0, n-1, lb);
                ++ans[x].ans;
            }
        }
        if(it2 == que.begin()) break;
        --it2;
    }
    Node fin = ans[0];
    for(int i=1; i<n; ++i) {
        if(ans[i].ans == fin.ans) {
            fin.ways = (fin.ways + ans[i].ways) % MOD;
        } else if(ans[i].ans > fin.ans) fin = ans[i];
    }
    cout << fin.ans << " " << fin.ways << endl;
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(NULL);

    int t = 1;
    while(t--)
        solve();
    return 0;
}

Subtask #1

73.0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	592 KB	Output is correct
4	Correct	2 ms	592 KB	Output is correct
5	Correct	4 ms	1104 KB	Output is correct
6	Partially correct	5 ms	1360 KB	Partially correct
7	Correct	6 ms	1616 KB	Output is correct
8	Correct	7 ms	2008 KB	Output is correct
9	Partially correct	16 ms	3832 KB	Partially correct
10	Correct	28 ms	6736 KB	Output is correct
11	Partially correct	37 ms	8528 KB	Partially correct
12	Partially correct	84 ms	16464 KB	Partially correct
13	Partially correct	113 ms	20120 KB	Partially correct
14	Partially correct	127 ms	23112 KB	Partially correct
15	Partially correct	152 ms	24652 KB	Partially correct
16	Partially correct	155 ms	26328 KB	Partially correct
17	Partially correct	173 ms	27904 KB	Partially correct
18	Correct	128 ms	29680 KB	Output is correct
19	Correct	164 ms	31232 KB	Output is correct
20	Correct	205 ms	32944 KB	Output is correct