oj.uz

Submission #411198

# Submission time Handle Problem Language Result Execution time Memory
411198 2021-05-24T16:12:49 Z two_sides Comparing Plants (IOI20_plants) C++17
100 / 100
 735 ms 50412 KB 
#include "plants.h"
#include <bits/stdc++.h>

using namespace std;

struct segment_tree {
    int l, r, m, v, t;
    segment_tree *c[2];

    segment_tree(int l, int r,
    const vector <int> &a):
    l(l), r(r), m((l + r) / 2), t(0) {
        if (l + 1 == r) {
            v = a[l]; return;
        }
        c[0] = new segment_tree(l, m, a);
        c[1] = new segment_tree(m, r, a);
        pull();
    }

    void apply(int x) {
        v -= x; t += x;
    }

    void pull() {
        v = min(c[0]->v, c[1]->v);
    }

    void push() {
        c[0]->apply(t);
        c[1]->apply(t); t = 0;
    }

    void dec(int x, int y) {
        if (x == y) return;
        if (l >= x && r <= y)
            return	apply(1);
        push();
        if (m > x) c[0]->dec(x, y);
        if (m < y) c[1]->dec(x, y);
        pull();
    }

    void del(int p) {
        if (l + 1 == r) v = 1e9;
        else {
            push();
            if (m > p) c[0]->del(p);
            else c[1]->del(p);
            pull();
        }
    }

    int zero() {
        if (l + 1 == r) return l;
        push();
        if (!c[0]->v)
            return c[0]->zero();
        return c[1]->zero();
    }
};

void build(int k, vector <int> r,
vector <int> &idx, vector <int> &ptr) {
    int n = r.size();
    ptr.resize(n + 1);
    idx.resize(n + 1);
    vector <int> que(n + 1);
    que[0] = n; idx[n] = -1;
    int first = 1, last = 1;
    segment_tree seg(0, n, r);
    for (int i = 0, p; i < n; i++) {
        while (seg.v) {
            p = que[first++];
            seg.dec(p - k + n + 1, n);
        }
        p = seg.zero(); idx[p] = i;
        seg.del(p);
        if (p < k - 1)
            seg.dec(0, que[last++] = p);
        else seg.dec(p - k + 1, p);
        ptr[p] = idx[que[first - 1]];
    }
}

vector <int> idxg, idxl;
vector <int> ptrg, ptrl;

void init(int k, vector <int> r) {
    build(k, r, idxg, ptrg);
    for (int &x : r) x = k - 1 - x;
    build(k, r, idxl, ptrl);
    return;
}

int compare_plants(int x, int y) {
    if (x > y)
        return -compare_plants(y, x);
    if (idxg[x] > idxg[y] ||
    ptrl[y] >= idxl[x]) return -1;
    if (idxl[x] > idxl[y] ||
    ptrg[y] >= idxg[x]) return 1;
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 56 ms 3028 KB Output is correct
7 Correct 88 ms 7452 KB Output is correct
8 Correct 319 ms 46624 KB Output is correct
9 Correct 317 ms 46528 KB Output is correct
10 Correct 324 ms 46508 KB Output is correct
11 Correct 338 ms 46420 KB Output is correct
12 Correct 319 ms 46520 KB Output is correct
13 Correct 312 ms 46476 KB Output is correct
14 Correct 327 ms 46472 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 2 ms 204 KB Output is correct
6 Correct 5 ms 556 KB Output is correct
7 Correct 86 ms 6004 KB Output is correct
8 Correct 3 ms 456 KB Output is correct
9 Correct 4 ms 588 KB Output is correct
10 Correct 68 ms 6084 KB Output is correct
11 Correct 66 ms 5972 KB Output is correct
12 Correct 64 ms 6108 KB Output is correct
13 Correct 70 ms 6104 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 2 ms 204 KB Output is correct
6 Correct 5 ms 556 KB Output is correct
7 Correct 86 ms 6004 KB Output is correct
8 Correct 3 ms 456 KB Output is correct
9 Correct 4 ms 588 KB Output is correct
10 Correct 68 ms 6084 KB Output is correct
11 Correct 66 ms 5972 KB Output is correct
12 Correct 64 ms 6108 KB Output is correct
13 Correct 70 ms 6104 KB Output is correct
14 Correct 102 ms 9628 KB Output is correct
15 Correct 733 ms 50412 KB Output is correct
16 Correct 97 ms 9724 KB Output is correct
17 Correct 726 ms 50296 KB Output is correct
18 Correct 372 ms 49776 KB Output is correct
19 Correct 378 ms 50268 KB Output is correct
20 Correct 637 ms 50208 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 70 ms 4052 KB Output is correct
4 Correct 333 ms 49308 KB Output is correct
5 Correct 395 ms 49544 KB Output is correct
6 Correct 570 ms 49764 KB Output is correct
7 Correct 697 ms 49956 KB Output is correct
8 Correct 728 ms 50160 KB Output is correct
9 Correct 357 ms 49528 KB Output is correct
10 Correct 355 ms 49444 KB Output is correct
11 Correct 310 ms 49288 KB Output is correct
12 Correct 340 ms 49592 KB Output is correct
13 Correct 372 ms 49596 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 292 KB Output is correct
6 Correct 2 ms 332 KB Output is correct
7 Correct 14 ms 1264 KB Output is correct
8 Correct 14 ms 1276 KB Output is correct
9 Correct 14 ms 1220 KB Output is correct
10 Correct 14 ms 1228 KB Output is correct
11 Correct 13 ms 1236 KB Output is correct
12 Correct 14 ms 1272 KB Output is correct
13 Correct 17 ms 1204 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 2 ms 460 KB Output is correct
6 Correct 372 ms 48820 KB Output is correct
7 Correct 573 ms 48776 KB Output is correct
8 Correct 680 ms 49032 KB Output is correct
9 Correct 689 ms 49296 KB Output is correct
10 Correct 344 ms 48656 KB Output is correct
11 Correct 473 ms 49188 KB Output is correct
12 Correct 329 ms 48420 KB Output is correct
13 Correct 380 ms 48696 KB Output is correct
14 Correct 572 ms 48892 KB Output is correct
15 Correct 698 ms 49100 KB Output is correct
16 Correct 340 ms 48668 KB Output is correct
17 Correct 372 ms 48744 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 56 ms 3028 KB Output is correct
7 Correct 88 ms 7452 KB Output is correct
8 Correct 319 ms 46624 KB Output is correct
9 Correct 317 ms 46528 KB Output is correct
10 Correct 324 ms 46508 KB Output is correct
11 Correct 338 ms 46420 KB Output is correct
12 Correct 319 ms 46520 KB Output is correct
13 Correct 312 ms 46476 KB Output is correct
14 Correct 327 ms 46472 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 2 ms 204 KB Output is correct
20 Correct 5 ms 556 KB Output is correct
21 Correct 86 ms 6004 KB Output is correct
22 Correct 3 ms 456 KB Output is correct
23 Correct 4 ms 588 KB Output is correct
24 Correct 68 ms 6084 KB Output is correct
25 Correct 66 ms 5972 KB Output is correct
26 Correct 64 ms 6108 KB Output is correct
27 Correct 70 ms 6104 KB Output is correct
28 Correct 102 ms 9628 KB Output is correct
29 Correct 733 ms 50412 KB Output is correct
30 Correct 97 ms 9724 KB Output is correct
31 Correct 726 ms 50296 KB Output is correct
32 Correct 372 ms 49776 KB Output is correct
33 Correct 378 ms 50268 KB Output is correct
34 Correct 637 ms 50208 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 70 ms 4052 KB Output is correct
38 Correct 333 ms 49308 KB Output is correct
39 Correct 395 ms 49544 KB Output is correct
40 Correct 570 ms 49764 KB Output is correct
41 Correct 697 ms 49956 KB Output is correct
42 Correct 728 ms 50160 KB Output is correct
43 Correct 357 ms 49528 KB Output is correct
44 Correct 355 ms 49444 KB Output is correct
45 Correct 310 ms 49288 KB Output is correct
46 Correct 340 ms 49592 KB Output is correct
47 Correct 372 ms 49596 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 292 KB Output is correct
53 Correct 2 ms 332 KB Output is correct
54 Correct 14 ms 1264 KB Output is correct
55 Correct 14 ms 1276 KB Output is correct
56 Correct 14 ms 1220 KB Output is correct
57 Correct 14 ms 1228 KB Output is correct
58 Correct 13 ms 1236 KB Output is correct
59 Correct 14 ms 1272 KB Output is correct
60 Correct 17 ms 1204 KB Output is correct
61 Correct 60 ms 5332 KB Output is correct
62 Correct 88 ms 9492 KB Output is correct
63 Correct 333 ms 49312 KB Output is correct
64 Correct 380 ms 49560 KB Output is correct
65 Correct 581 ms 49852 KB Output is correct
66 Correct 686 ms 50080 KB Output is correct
67 Correct 735 ms 50264 KB Output is correct
68 Correct 379 ms 49704 KB Output is correct
69 Correct 485 ms 50120 KB Output is correct
70 Correct 340 ms 49316 KB Output is correct
71 Correct 377 ms 49572 KB Output is correct
72 Correct 584 ms 49728 KB Output is correct
73 Correct 702 ms 50076 KB Output is correct
74 Correct 339 ms 49444 KB Output is correct
75 Correct 372 ms 49624 KB Output is correct