oj.uz

Submission #698427

# Submission time Handle Problem Language Result Execution time Memory
698427 2023-02-13T12:45:57 Z pls33 Rabbit Carrot (LMIO19_triusis) C++17
100 / 100
 419 ms 240728 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

#pragma region dalykai
using p32 = pair<int, int>;
using p32u = pair<uint32_t, uint32_t>;
using p64 = pair<int64_t, int64_t>;
using p64u = pair<uint64_t, uint64_t>;
using vi16 = vector<int16_t>;
using vi16u = vector<uint16_t>;
using vi32 = vector<int>;
using vi32u = vector<uint32_t>;
using vi64 = vector<int64_t>;
using vi64u = vector<uint64_t>;
using vp32 = vector<p32>;
using vp32u = vector<p32u>;
using vp64 = vector<p64>;
using vp64u = vector<p64u>;
using vvi32 = vector<vi32>;
using vvi32u = vector<vi32u>;
using vvi64 = vector<vi64>;
using vvi64u = vector<vi64u>;
using vvp32 = vector<vp32>;
using vvp32u = vector<vp32u>;
using vvp64 = vector<vp64>;
using vvp64u = vector<vp64u>;

using pf32 = pair<float, float>;
using pf64 = pair<double, double>;
using pf80 = pair<long double, long double>;
using vf32 = vector<float>;
using vf64 = vector<double>;
using vf80 = vector<long double>;
using vpf32 = vector<pf32>;
using vpf64 = vector<pf64>;
using vpf80 = vector<pf80>;
using vvf32 = vector<vf32>;
using vvf64 = vector<vf64>;
using vvf80 = vector<vf80>;
using vvpf32 = vector<vpf32>;
using vvpf64 = vector<vpf64>;
using vvpf80 = vector<vpf80>;

template <typename key, typename val>
using ord_map = tree<key, val, less<key>, rb_tree_tag,
                     tree_order_statistics_node_update>;

template <typename key>
using ord_set = tree<key, null_type, less<key>, rb_tree_tag,
                     tree_order_statistics_node_update>;

const int BUF_SZ = 1 << 15;
inline namespace fast_in
{
    char buf[BUF_SZ];
    int pos;
    int len;

    char next_char(FILE *f)
    {
        if (pos == len)
        {
            pos = 0;
            len = (int)fread(buf, 1, BUF_SZ, f);

            if (!len)
            {
                return EOF;
            }
        }

        return buf[pos++];
    }

    int read_int(FILE *f)
    {
        int x;
        char ch;
        int sgn = 1;

        while (!isdigit(ch = next_char(f)))
        {
            if (ch == '-')
            {
                sgn *= -1;
            }
        }

        x = ch - '0';
        while (isdigit(ch = next_char(f)))
        {
            x = x * 10 + (ch - '0');
        }

        return x * sgn;
    }
}

/**
 * @brief gale programos flush_out kviest!!
 */
inline namespace fast_out
{
    char buf[BUF_SZ];
    int pos;

    void flush_out(FILE *f)
    {
        fwrite(buf, 1, pos, f);
        pos = 0;
    }

    void write_char(char c, FILE *f)
    {
        if (pos == BUF_SZ)
        {
            flush_out(f);
        }

        buf[pos++] = c;
    }

    void write_int(int x, FILE *f)
    {
        static char num_buf[100];

        if (x < 0)
        {
            write_char('-', f);
            x *= -1;
        }

        int len = 0;
        for (; x >= 10; x /= 10)
        {
            num_buf[len++] = (char)('0' + (x % 10));
        }

        write_char((char)('0' + x), f);
        while (len)
        {
            write_char(num_buf[--len], f);
        }
        write_char('\n', f);
    }
}
#pragma endregion

int64_t get_midpoint(int64_t l, int64_t r)
{
    int64_t pow_2 = 1LL << __lg(r - l);
    return min(l + pow_2, r - pow_2 / 2);
}

struct node_t
{
    int value;
    node_t *left;
    node_t *right;

    p64 range;

    node_t(int v, p64 r)
    {
        value = v;
        range = r;

        left = nullptr;
        right = nullptr;
    }

    void expand()
    {
        if (range.second - range.first == 1)
        {
            return;
        }

        int64_t mid = get_midpoint(range.first, range.second);
        if (!left)
        {
            left = new node_t(0, {range.first, mid});
        }
        if (!right)
        {
            right = new node_t(0, {mid, range.second});
        }
    }

    void recalc()
    {
        expand();
        value = max(left->value, right->value);
    }
};

int intersect(p64 a, p64 b)
{
    if (a.first >= b.second || a.second <= b.first)
    {
        return 0;
    }
    if (a.first >= b.first && a.second <= b.second)
    {
        return 1;
    }

    return 2;
}

void update(int value, p64 dest, node_t *node)
{
    if (!node || !intersect(node->range, dest))
    {
        return;
    }

    p64 &range = node->range;
    if (range == dest)
    {
        node->value = max(node->value, value);
        return;
    }

    node->expand();

    update(value, dest, node->left);
    update(value, dest, node->right);

    node->recalc();
}

int query(p64 dest, node_t *node)
{
    if (!node)
    {
        return 0;
    }

    p64 &range = node->range;

    int res = intersect(range, dest);
    if (!res)
    {
        return 0;
    }

    if (res == 1)
    {
        return node->value;
    }

    node->expand();

    int left = query(dest, node->left);
    int right = query(dest, node->right);

    return max(left, right);
}

int main()
{
#ifndef _AAAAAAAAA
    ios_base::sync_with_stdio(false);
    cin.tie(0);
#else
    freopen("triusis.in", "r", stdin);
#ifndef __linux__
    atexit([]()
           {
        freopen("con", "r", stdin);
        system("pause"); });
#endif
#endif

    int64_t n, m;
    cin >> n >> m;

    vi64 height(n);

    for (auto &h : height)
    {
        cin >> h;
    }

    int64_t lower = -1e9;
    int64_t upper = 1e9 + 1;

    node_t *node = new node_t(0, {lower, upper});
    if (height.front() <= m)
    {
        update(1, {height[0] - m, height[0] - m + 1}, node);
    }

    int64_t total = height.front() <= m;
    for (int i = 1; i < n; i++)
    {
        int64_t pos = height[i] - m * (i + 1);

        int64_t cur = query({pos, upper}, node);
        if (cur == 0 && height[i] > m * (i + 1))
        {
            continue;
        }

        update((int)cur + 1, {pos, pos + 1}, node);
        total = max(total, cur + 1);
    }

    cout << n - total << '\n';

    return 0;
}

Compilation message

triusis.cpp:8: warning: ignoring '#pragma region dalykai' [-Wunknown-pragmas]
    8 | #pragma region dalykai
      | 
triusis.cpp:151: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas]
  151 | #pragma endregion
      |

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 328 KB Output is correct
8 Correct 0 ms 324 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 320 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 328 KB Output is correct
8 Correct 0 ms 324 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 320 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 320 KB Output is correct
19 Correct 0 ms 328 KB Output is correct
20 Correct 4 ms 1108 KB Output is correct
21 Correct 6 ms 2332 KB Output is correct
22 Correct 4 ms 716 KB Output is correct
23 Correct 9 ms 5840 KB Output is correct
24 Correct 14 ms 6484 KB Output is correct
25 Correct 7 ms 2432 KB Output is correct
26 Correct 8 ms 4564 KB Output is correct
27 Correct 3 ms 340 KB Output is correct
28 Correct 3 ms 340 KB Output is correct
29 Correct 6 ms 2260 KB Output is correct
30 Correct 6 ms 2432 KB Output is correct
31 Correct 4 ms 596 KB Output is correct
32 Correct 9 ms 5244 KB Output is correct
33 Correct 8 ms 5076 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 0 ms 328 KB Output is correct
4 Correct 4 ms 1108 KB Output is correct
5 Correct 6 ms 2332 KB Output is correct
6 Correct 4 ms 716 KB Output is correct
7 Correct 9 ms 5840 KB Output is correct
8 Correct 14 ms 6484 KB Output is correct
9 Correct 7 ms 2432 KB Output is correct
10 Correct 8 ms 4564 KB Output is correct
11 Correct 3 ms 340 KB Output is correct
12 Correct 3 ms 340 KB Output is correct
13 Correct 6 ms 2260 KB Output is correct
14 Correct 6 ms 2432 KB Output is correct
15 Correct 4 ms 596 KB Output is correct
16 Correct 9 ms 5244 KB Output is correct
17 Correct 8 ms 5076 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 328 KB Output is correct
25 Correct 0 ms 324 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 320 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 11 ms 8172 KB Output is correct
35 Correct 9 ms 8228 KB Output is correct
36 Correct 10 ms 8276 KB Output is correct
37 Correct 8 ms 4564 KB Output is correct
38 Correct 4 ms 332 KB Output is correct
39 Correct 5 ms 468 KB Output is correct
40 Correct 4 ms 596 KB Output is correct
41 Correct 3 ms 328 KB Output is correct
42 Correct 9 ms 5972 KB Output is correct
43 Correct 9 ms 5840 KB Output is correct

Subtask #4
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 8172 KB Output is correct
2 Correct 9 ms 8228 KB Output is correct
3 Correct 10 ms 8276 KB Output is correct
4 Correct 8 ms 4564 KB Output is correct
5 Correct 4 ms 332 KB Output is correct
6 Correct 5 ms 468 KB Output is correct
7 Correct 4 ms 596 KB Output is correct
8 Correct 3 ms 328 KB Output is correct
9 Correct 9 ms 5972 KB Output is correct
10 Correct 9 ms 5840 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 320 KB Output is correct
13 Correct 0 ms 328 KB Output is correct
14 Correct 4 ms 1108 KB Output is correct
15 Correct 6 ms 2332 KB Output is correct
16 Correct 4 ms 716 KB Output is correct
17 Correct 9 ms 5840 KB Output is correct
18 Correct 14 ms 6484 KB Output is correct
19 Correct 7 ms 2432 KB Output is correct
20 Correct 8 ms 4564 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 6 ms 2260 KB Output is correct
24 Correct 6 ms 2432 KB Output is correct
25 Correct 4 ms 596 KB Output is correct
26 Correct 9 ms 5244 KB Output is correct
27 Correct 8 ms 5076 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 328 KB Output is correct
35 Correct 0 ms 324 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 1 ms 320 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 0 ms 212 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 214 ms 82004 KB Output is correct
45 Correct 363 ms 218036 KB Output is correct
46 Correct 419 ms 240656 KB Output is correct
47 Correct 415 ms 240728 KB Output is correct
48 Correct 231 ms 88668 KB Output is correct
49 Correct 295 ms 172848 KB Output is correct
50 Correct 122 ms 3784 KB Output is correct
51 Correct 128 ms 3788 KB Output is correct
52 Correct 153 ms 12052 KB Output is correct
53 Correct 69 ms 3156 KB Output is correct
54 Correct 338 ms 212128 KB Output is correct
55 Correct 331 ms 211180 KB Output is correct