oj.uz

Submission #308886

# Submission time Handle Problem Language Result Execution time Memory
308886 2020-10-02T07:13:10 Z Vimmer Comparing Plants (IOI20_plants) C++14
49 / 100
 701 ms 43464 KB 
#include <bits/stdc++.h>
#include "plants.h"
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>

#define N 200005
#define PB push_back
#define sz(x) int(x.size())
#define P 31
#define F first
#define M ll(1e9 + 7)
#define S second
#define all(x) x.begin(), x.end()
//#define endl '\n'

//#pragma GCC optimize("unroll-loops")
//#pragma GCC optimize("-O3")
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("fast-math")
//#pragma GCC optimize("no-stack-protector")

using namespace std;
//using namespace __gnu_pbds;

typedef long long ll;

//typedef tree<int, null_type, less_equal <int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

ll mlt(ll a, ll b) {return (a * b) % M;}
ll sm(ll a, ll b) {return (a + b) % M;}

int id, K, h[N];

array <int, 2> t[N * 4];

int psh[N * 4], n, val[N];

pair <int, int> nxt[N];

vector <pair <int, int> > gt[N];

vector <int> a;

set <int> g[N];


void Push(int v, int tl, int tr)
{
    t[v][0] += psh[v];

    t[v][0] = max(t[v][0], 0);

    if (tl != tr)
    {
        psh[v + v] += psh[v];

        psh[v + v + 1] += psh[v];
    }

    psh[v] = 0;
}


void com(int v)
{
    if (t[v + v][0] < t[v + v + 1][0]) t[v] = t[v + v];
     else t[v] = t[v + v + 1];
}

void bld(int v, int tl, int tr)
{
    if (tl == tr) t[v] = {a[tl], tl};
    else
    {
        int md = (tl + tr) >> 1;

        bld(v + v, tl, md);

        bld(v + v + 1, md + 1, tr);

        com(v);
    }
}

void upd(int v, int tl, int tr, int ps)
{
    Push(v, tl, tr);

    if (tr < ps || ps < tl) return;

    if (tl == tr) t[v] = {int(1e9), tl};
      else
      {
          int md = (tl + tr) >> 1;

          upd(v + v, tl, md, ps);

          upd(v + v + 1, md + 1, tr, ps);

          com(v);
      }
}

void upd(int v, int tl, int tr, int l, int r)
{
    Push(v, tl, tr);

    if (tr < l || r < tl || l > r || tl > tr) return;

    if (l <= tl && tr <= r) {psh[v]--; Push(v, tl, tr); return;}

    int md = (tl + tr) >> 1;

    upd(v + v, tl, md, l, r);

    upd(v + v + 1, md + 1, tr, l, r);

    com(v);
}

void dfs(int v)
{
    pair <int, int> pt;

    pt.F = id++;

    for (auto it : g[v])
      dfs(it);

    pt.S = id++;

    gt[v].PB(pt);
}

void init(int k, vector<int> r)
{
    K = k;

    n = sz(r);

    if (k == 2)
    {
        set <int> se; se.clear();

        for (int i = 0; i < sz(r); i++) se.insert(i);

        for (int i = 0; i < sz(r); i++)
        {
            int nxt = (i + 1) % sz(r);

            if (r[i] == 1) {g[nxt].insert(i); se.erase(i);}
              else {g[i].insert(nxt);se.erase(nxt);}
        }

        for (auto it : se) dfs(it);

        return;
    }

    a = r;

    bld(1, 0, n - 1);

    int cur = n;

    while (cur > 0)
    {
        vector <int> gr; gr.clear();

        while (t[1][0] == 0)
        {
            gr.PB(t[1][1]);

            upd(1, 0, n - 1, t[1][1]);
        }

        sort(all(gr));

        set <pair <int, int> > se; se.clear();

        set <int> st; st.clear();

        for (int i = 0; i < sz(gr); i++)
        {
            int x = gr[i];

            st.insert(x);

            if (i == 0) {nxt[x].F = gr.back(); val[x] = gr[i] + n - gr.back();}
              else {nxt[x].F = gr[i - 1]; val[x] = gr[i] - gr[i - 1];}

            if (i + 1 == sz(gr)) nxt[x].S = gr[0];
              else nxt[x].S = gr[i + 1];

            se.insert({val[x], x});
        }


        while (sz(se) > 0)
        {
//            cout << "Saved: "; for (auto it : se) cout << it.S << " "; cout << endl;

            int glob = cur;

            vector <int> pr; pr.clear();

            while (sz(se) > 0 && (sz(pr) == 0))
            {
                int ps = (*se.rbegin()).S;

                se.erase(*se.rbegin());

                st.erase(ps);

                pr.PB(ps);

                h[ps] = glob;

                cur--;
            }

            for (int i = 0; i < sz(pr); i++)
            {
//                while (sz(se) > 0 && ((*se.rbegin()).F >= K || sz(pr) == 0))
//                {
//                    int ps = (*se.rbegin()).S;
//
//                    se.erase(*se.rbegin());
//
//                    st.erase(ps);
//
//                    pr.PB(ps);
//
//                    h[ps] = glob;
//
//                    cur--;
//                }

                int ps = pr[i];

//                cout << "maked: " << ps << endl;

                if (sz(st) != 0)
                {
                    nxt[nxt[ps].F].S = nxt[ps].S;

                    nxt[nxt[ps].S].F = nxt[ps].F;

                    int l = nxt[ps].F, r = nxt[ps].S;

                    bool f = 0;

                    if (se.find({val[r], r}) != se.end()) {f = 1; se.erase({val[r], r});}

                    if (l < r) val[r] = r - l;
                      else val[r] = n - l + r;

                    if (f) se.insert({val[r], r});
                }

                upd(1, 0, n - 1, max(0, ps - k + 1), ps - 1);

                if (ps - k + 1 < 0) upd(1, 0, n - 1, n - abs(ps - k + 1), n - 1);

                while (t[1][0] == 0)
                {
                    int ps = t[1][1];

                    upd(1, 0, n - 1, ps);

                    if (sz(st) == 0)
                    {
                        nxt[ps].F = nxt[ps].S = ps;

                        val[ps] = 0;
                    }
                    else
                    {

                        auto it = st.upper_bound(ps);

                        int l, r;

                        if (it == st.end())
                        {
                            r = *st.begin();

                            it--;

                            l = *it;
                        }
                        else if (it == st.begin())
                        {
                            r = *it;

                            l = *st.rbegin();
                        }
                        else
                        {
                            r = *it;

                            it--;

                            l = *it;
                        }

                        se.erase({val[r], r});

                        nxt[r].F = nxt[l].S = ps;

                        nxt[ps].F = l; nxt[ps].S = r;

                        if (l < ps) val[ps] = ps - l;
                          else val[ps] = n - l + ps;

                        if (ps < r) val[r] = r - ps;
                          else val[r] = n - ps + r;

                        se.insert({val[r], r});
                    }

                    st.insert(ps);

                    se.insert({val[ps], ps});

//                    cout << val[ps] << " " << ps << endl;
                }
            }
        }
    }

	return;
}

int compare_plants(int x, int y)
{
    if (K == 2)
    {
        for (auto it : gt[x])
          for (auto itr : gt[y])
            if (it.F <= itr.F && itr.S <= it.S) return 1;
              else if (itr.F <= it.F && it.S <= itr.S) return -1;

        return 0;
    }

    if (h[x] > h[y]) return 1;

    if (h[x] == h[y]) return 0;

    return -1;
}

//int main()
//{
////    freopen("help.in", "r", stdin); freopen("help.out", "w", stdout);
//
//    ios_base::sync_with_stdio(0); istream::sync_with_stdio(0); cin.tie(0); cout.tie(0);
//
//    init(4, {0, 1, 3, 3, 3, 2, 3, 1, 0});
//
//    for (int i = 0; i < 9; i++) cout << h[i] << " ";
//}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB Output is correct
2 Correct 10 ms 14464 KB Output is correct
3 Correct 10 ms 14464 KB Output is correct
4 Correct 10 ms 14464 KB Output is correct
5 Correct 10 ms 14464 KB Output is correct
6 Correct 72 ms 17272 KB Output is correct
7 Correct 99 ms 18936 KB Output is correct
8 Correct 214 ms 34424 KB Output is correct
9 Correct 229 ms 34168 KB Output is correct
10 Correct 214 ms 34296 KB Output is correct
11 Correct 233 ms 35656 KB Output is correct
12 Correct 214 ms 38904 KB Output is correct
13 Correct 214 ms 43376 KB Output is correct
14 Correct 221 ms 43464 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB Output is correct
2 Correct 10 ms 14464 KB Output is correct
3 Correct 11 ms 14464 KB Output is correct
4 Correct 10 ms 14464 KB Output is correct
5 Correct 10 ms 14464 KB Output is correct
6 Correct 13 ms 14592 KB Output is correct
7 Correct 88 ms 17656 KB Output is correct
8 Correct 12 ms 14592 KB Output is correct
9 Correct 14 ms 14592 KB Output is correct
10 Correct 86 ms 17656 KB Output is correct
11 Correct 87 ms 17784 KB Output is correct
12 Correct 85 ms 17736 KB Output is correct
13 Correct 86 ms 17656 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB Output is correct
2 Correct 10 ms 14464 KB Output is correct
3 Correct 11 ms 14464 KB Output is correct
4 Correct 10 ms 14464 KB Output is correct
5 Correct 10 ms 14464 KB Output is correct
6 Correct 13 ms 14592 KB Output is correct
7 Correct 88 ms 17656 KB Output is correct
8 Correct 12 ms 14592 KB Output is correct
9 Correct 14 ms 14592 KB Output is correct
10 Correct 86 ms 17656 KB Output is correct
11 Correct 87 ms 17784 KB Output is correct
12 Correct 85 ms 17736 KB Output is correct
13 Correct 86 ms 17656 KB Output is correct
14 Correct 123 ms 18680 KB Output is correct
15 Correct 655 ms 28412 KB Output is correct
16 Correct 139 ms 18680 KB Output is correct
17 Correct 649 ms 28408 KB Output is correct
18 Correct 674 ms 38324 KB Output is correct
19 Correct 405 ms 28572 KB Output is correct
20 Correct 583 ms 28476 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB Output is correct
2 Correct 10 ms 14464 KB Output is correct
3 Correct 80 ms 17472 KB Output is correct
4 Correct 468 ms 34928 KB Output is correct
5 Correct 522 ms 29944 KB Output is correct
6 Correct 637 ms 28664 KB Output is correct
7 Correct 701 ms 28536 KB Output is correct
8 Correct 698 ms 28408 KB Output is correct
9 Correct 547 ms 33268 KB Output is correct
10 Correct 518 ms 30072 KB Output is correct
11 Correct 217 ms 43384 KB Output is correct
12 Correct 355 ms 28408 KB Output is correct
13 Correct 648 ms 42236 KB Output is correct

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB Output is correct
2 Correct 10 ms 14464 KB Output is correct
3 Correct 10 ms 14464 KB Output is correct
4 Correct 10 ms 14464 KB Output is correct
5 Incorrect 11 ms 14464 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB Output is correct
2 Correct 10 ms 14464 KB Output is correct
3 Correct 10 ms 14464 KB Output is correct
4 Incorrect 11 ms 14464 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB Output is correct
2 Correct 10 ms 14464 KB Output is correct
3 Correct 10 ms 14464 KB Output is correct
4 Correct 10 ms 14464 KB Output is correct
5 Correct 10 ms 14464 KB Output is correct
6 Correct 72 ms 17272 KB Output is correct
7 Correct 99 ms 18936 KB Output is correct
8 Correct 214 ms 34424 KB Output is correct
9 Correct 229 ms 34168 KB Output is correct
10 Correct 214 ms 34296 KB Output is correct
11 Correct 233 ms 35656 KB Output is correct
12 Correct 214 ms 38904 KB Output is correct
13 Correct 214 ms 43376 KB Output is correct
14 Correct 221 ms 43464 KB Output is correct
15 Correct 10 ms 14464 KB Output is correct
16 Correct 10 ms 14464 KB Output is correct
17 Correct 11 ms 14464 KB Output is correct
18 Correct 10 ms 14464 KB Output is correct
19 Correct 10 ms 14464 KB Output is correct
20 Correct 13 ms 14592 KB Output is correct
21 Correct 88 ms 17656 KB Output is correct
22 Correct 12 ms 14592 KB Output is correct
23 Correct 14 ms 14592 KB Output is correct
24 Correct 86 ms 17656 KB Output is correct
25 Correct 87 ms 17784 KB Output is correct
26 Correct 85 ms 17736 KB Output is correct
27 Correct 86 ms 17656 KB Output is correct
28 Correct 123 ms 18680 KB Output is correct
29 Correct 655 ms 28412 KB Output is correct
30 Correct 139 ms 18680 KB Output is correct
31 Correct 649 ms 28408 KB Output is correct
32 Correct 674 ms 38324 KB Output is correct
33 Correct 405 ms 28572 KB Output is correct
34 Correct 583 ms 28476 KB Output is correct
35 Correct 10 ms 14464 KB Output is correct
36 Correct 10 ms 14464 KB Output is correct
37 Correct 80 ms 17472 KB Output is correct
38 Correct 468 ms 34928 KB Output is correct
39 Correct 522 ms 29944 KB Output is correct
40 Correct 637 ms 28664 KB Output is correct
41 Correct 701 ms 28536 KB Output is correct
42 Correct 698 ms 28408 KB Output is correct
43 Correct 547 ms 33268 KB Output is correct
44 Correct 518 ms 30072 KB Output is correct
45 Correct 217 ms 43384 KB Output is correct
46 Correct 355 ms 28408 KB Output is correct
47 Correct 648 ms 42236 KB Output is correct
48 Correct 10 ms 14464 KB Output is correct
49 Correct 10 ms 14464 KB Output is correct
50 Correct 10 ms 14464 KB Output is correct
51 Correct 10 ms 14464 KB Output is correct
52 Incorrect 11 ms 14464 KB Output isn't correct
53 Halted 0 ms 0 KB -