oj.uz

Submission #907079

# Submission time Handle Problem Language Result Execution time Memory
907079 2024-01-15T06:47:14 Z gaga999 Sandcastle 2 (JOI22_ho_t5) C++17
100 / 100
 492 ms 21332 KB 
#include <cstdio>
#include <stdio.h>
#include <iostream>
#include <math.h>
#include <vector>
#include <queue>
#include <stack>
#include <deque>
#include <algorithm>
#include <utility>
#include <set>
#include <map>
#include <stdlib.h>
#include <cstring>
#include <string.h>
#include <string>
#include <sstream>
#include <assert.h>
#include <climits>
#include <sstream>
#include <numeric>
#include <time.h>
#include <limits.h>
#include <list>
#include <bitset>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <iomanip>
#include <complex>
#include <chrono>
#include <fstream>
#include <functional>
#include <unistd.h>
// #pragma GCC optimize("Ofast,no-stack-protector")
// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx,avx2,bmi,bmi2,lzcnt,popcnt")
#define lowbit(x) ((x) & -(x))
#define ml(a, b) ((1ll * (a) * (b)) % M)
#define tml(a, b) (a) = ((1ll * (a) * (b)) % M)
#define ad(a, b) ((0ll + (a) + (b)) % M)
#define tad(a, b) (a) = ((0ll + (a) + (b)) % M)
#define mi(a, b) ((0ll + M + (a) - (b)) % M)
#define tmi(a, b) (a) = ((0ll + M + (a) - (b)) % M)
#define tmin(a, b) (a) = min((a), (b))
#define tmax(a, b) (a) = max((a), (b))
#define iter(a) (a).begin(), (a).end()
#define riter(a) (a).rbegin(), (a).rend()
#define init(a, b) memset((a), (b), sizeof(a))
#define cpy(a, b) memcpy((a), (b), sizeof(a))
#define uni(a) a.resize(unique(iter(a)) - a.begin())
#define pb emplace_back
#define mpr make_pair
#define ls(i) ((i) << 1)
#define rs(i) ((i) << 1 | 1)
#define INF 0x3f3f3f3f
#define NIF 0xc0c0c0c0
#define eps 1e-9
#define F first
#define S second
#define AC cin.tie(0)->sync_with_stdio(0)
using namespace std;
typedef long long llt;
typedef pair<int, int> pii;
typedef pair<double, double> pdd;
typedef pair<llt, llt> pll;
typedef complex<double> cd;
// const int M = 998244353;

// random_device rm;
// mt19937 rg(rm());
// default_random_engine rg(rm());
// uniform_int_distribution<int> rd(INT_MIN, INT_MAX);
// uniform_real_distribution<double> rd(0, M_PI);

void db() { cerr << "\n"; }
template <class T, class... U>
void db(T a, U... b) { cerr << a << " ", db(b...); }

inline char gc()
{
    const static int SZ = 1 << 16;
    static char buf[SZ], *p1, *p2;
    if (p1 == p2 && (p2 = buf + fread(p1 = buf, 1, SZ, stdin), p1 == p2))
        return -1;
    return *p1++;
}
void rd() {}
template <typename T, typename... U>
void rd(T &x, U &...y)
{
    x = 0;
    bool f = 0;
    char c = gc();
    while (!isdigit(c))
        f ^= !(c ^ 45), c = gc();
    while (isdigit(c))
        x = (x << 1) + (x << 3) + (c ^ 48), c = gc();
    f && (x = -x), rd(y...);
}

template <typename T>
void prt(T x)
{
    if (x < 0)
        putchar('-'), x = -x;
    if (x > 9)
        prt(x / 10);
    putchar((x % 10) ^ 48);
}

vector<vector<int>> gd, v[3][3][3][3], v1[3][3], v2[3][3], vr;
#define p1 [x - 1][y]
#define p2 [x][y - 1]
#define p3 [x][y + 1]
#define p4 [x + 1][y]
#define c1 x != l
#define c2 y != u
#define c3 y != d
#define c4 x != r
inline int gv(int x, int y, int l, int r, int u, int d)
{
    int mn = INF, cr = gd[x][y], res = 0;
    if (c1 && gd p1 > cr && gd p1 < mn)
        mn = gd p1, res = 1;
    if (c2 && gd p2 > cr && gd p2 < mn)
        mn = gd p2, res = 2;
    if (c3 && gd p3 > cr && gd p3 < mn)
        mn = gd p3, res = 3;
    if (c4 && gd p4 > cr && gd p4 < mn)
        mn = gd p4, res = 4;
    return res;
}
#define pp l, r, u, d
inline int slv(int x, int y, int l, int r, int u, int d)
{
    int res = 0;
    if (c1 && gv(x - 1, y, pp) == 4)
        res++;
    if (c2 && gv(x, y - 1, pp) == 3)
        res++;
    if (c3 && gv(x, y + 1, pp) == 2)
        res++;
    if (c4 && gv(x + 1, y, pp) == 1)
        res++;
    return !res;
}
#define vt(i, j) vector<vector<int>>(i, vector<int>(j))
int cnt[50004];
signed main()
{
    int n, m;
    rd(n, m);
    if (n > m)
    {
        swap(n, m);
        gd = vt(n, m);
        for (int i = 0; i < m; i++)
            for (int j = 0; j < n; j++)
                rd(gd[j][i]);
    }
    else
    {
        gd = vt(n, m);
        for (int i = 0; i < n; i++)
            for (int j = 0; j < m; j++)
                rd(gd[i][j]);
    }
    for (int l = 0; l < 3; l++)
    {
        for (int r = 0; r < 3; r++)
        {
            for (int u = 0; u < 3; u++)
            {
                for (int d = 0; d < 3; d++)
                {
                    v[l][r][u][d] = vt(n, m);
                    for (int i = 0; i < n; i++)
                        for (int j = 0; j < m; j++)
                            v[l][r][u][d][i][j] =
                                slv(i, j, max(0, i - l), min(n - 1, i + r), max(0, j - u), min(m - 1, j + d));
                }
            }
        }
    }
    for (int l = 0; l < 3; l++)
    {
        for (int r = 0; r < 3; r++)
        {
            v1[l][r] = v2[l][r] = vt(n, m);
            for (int i = 0; i < n; i++)
            {
                v1[l][r][i][0] = v[l][r][2][2][i][0];
                for (int j = 1; j < m; j++)
                    v1[l][r][i][j] = v[l][r][2][2][i][j] + v1[l][r][i][j - 1];
            }
            for (int j = 0; j < m; j++)
            {
                v2[l][r][0][j] = v[2][2][l][r][0][j];
                for (int i = 1; i < n; i++)
                    v2[l][r][i][j] = v[2][2][l][r][i][j] + v2[l][r][i - 1][j];
            }
        }
    }
    vr = vt(n, m);
    for (int i = 0; i < m; i++)
        vr[0][i] = v[2][2][2][2][0][i];
    for (int i = 1; i < n; i++)
    {
        vr[i][0] = v[2][2][2][2][0][i];
        for (int j = 1; j < m; j++)
        {
            vr[i][j] = vr[i - 1][j] + vr[i][j - 1] -
                       vr[i - 1][j - 1] + v[2][2][2][2][i][j];
        }
    }
    llt ans = 0;
    for (int l = 0; l < n; l++)
    {
        for (int r = 0; r < n; r++)
        {
            if (r - l < 4)
            {
                for (int i = 3; i < m; i++)
                {
                    int tp = 1;
                    for (int a = l; a <= r; a++)
                    {
                        int x = min(2, a - l), y = min(2, r - a);
                        tp += v1[x][y][a][i - 2] - v[x][y][0][2][a][i - 3] - v[x][y][1][2][a][i - 2];
                    }
                    if (tp >= 0)
                        cnt[tp]++;
                    tp = 0;
                    for (int a = l; a <= r; a++)
                    {
                        int x = min(2, a - l), y = min(2, r - a);
                        tp += v1[x][y][a][i - 2] + v[x][y][2][1][a][i - 1] + v[x][y][2][0][a][i];
                    }
                    ans += cnt[tp];
                }
                for (int i = 3; i < m; i++)
                {
                    int tp = 1;
                    for (int a = l; a <= r; a++)
                    {
                        int x = min(2, a - l), y = min(2, r - a);
                        tp += v1[x][y][a][i - 2] - v[x][y][0][2][a][i - 3] - v[x][y][1][2][a][i - 2];
                    }
                    if (tp >= 0)
                        cnt[tp]--;
                }
                for (int i = 0; i < m; i++)
                {
                    for (int j = i; j < min(i + 3, m); j++)
                    {
                        int tp = 0;
                        for (int a = l; a <= r; a++)
                            for (int b = i; b <= j; b++)
                                tp += v[min(2, a - l)][min(2, r - a)][min(2, b - i)][min(2, j - b)][a][b];
                        if (tp == 1)
                            ans++;
                    }
                }
            }
            else
            {
                for (int i = 0; i < m; i++)
                {
                    for (int j = i; j < min(i + 3, m); j++)
                    {
                        int tp = 0;
                        for (int b = i; b <= j; b++)
                        {
                            int x = min(b - i, 2), y = min(j - b, 2);
                            tp += v[0][2][x][y][l][b];
                            tp += v[1][2][x][y][l + 1][b];
                            tp += v[2][0][x][y][r][b];
                            tp += v[2][1][x][y][r - 1][b];
                            tp += v2[x][y][r - 2][b] - v2[x][y][l + 1][b];
                        }
                        if (tp == 1)
                            ans++;
                    }
                }
                for (int i = 3; i < m; i++)
                {
                    int tp = 1;
                    tp += v1[0][2][l][i - 2] - v[0][2][0][2][l][i - 3] - v[0][2][1][2][l][i - 2];
                    tp += v1[1][2][l + 1][i - 2] - v[1][2][0][2][l + 1][i - 3] - v[1][2][1][2][l + 1][i - 2];
                    tp += v1[2][0][r][i - 2] - v[2][0][0][2][r][i - 3] - v[2][0][1][2][r][i - 2];
                    tp += v1[2][1][r - 1][i - 2] - v[2][1][0][2][r - 1][i - 3] - v[2][1][1][2][r - 1][i - 2];
                    tp += vr[r - 2][i - 2] - vr[l + 1][i - 2] -
                          v2[0][2][r - 2][i - 3] + v2[0][2][l + 1][i - 3] -
                          v2[1][2][r - 2][i - 2] + v2[1][2][l + 1][i - 2];
                    if (tp >= 0)
                        cnt[tp]++;
                    tp = 0;
                    tp += v1[0][2][l][i - 2] + v[0][2][2][0][l][i] + v[0][2][2][1][l][i - 1];
                    tp += v1[1][2][l + 1][i - 2] + v[1][2][2][0][l + 1][i] + v[1][2][2][1][l + 1][i - 1];
                    tp += v1[2][0][r][i - 2] + v[2][0][2][0][r][i] + v[2][0][2][1][r][i - 1];
                    tp += v1[2][1][r - 1][i - 2] + v[2][1][2][0][r - 1][i] + v[2][1][2][1][r - 1][i - 1];
                    tp += vr[r - 2][i - 2] - vr[l + 1][i - 2] +
                          v2[2][0][r - 2][i] - v2[2][0][l + 1][i] +
                          v2[2][1][r - 2][i - 1] - v2[2][1][l + 1][i - 1];
                    ans += cnt[tp];
                }
                for (int i = 3; i < m; i++)
                {
                    int tp = 1;
                    tp += v1[0][2][l][i - 2] - v[0][2][0][2][l][i - 3] - v[0][2][1][2][l][i - 2];
                    tp += v1[1][2][l + 1][i - 2] - v[1][2][0][2][l + 1][i - 3] - v[1][2][1][2][l + 1][i - 2];
                    tp += v1[2][0][r][i - 2] - v[2][0][0][2][r][i - 3] - v[2][0][1][2][r][i - 2];
                    tp += v1[2][1][r - 1][i - 2] - v[2][1][0][2][r - 1][i - 3] - v[2][1][1][2][r - 1][i - 2];
                    tp += vr[r - 2][i - 2] - vr[l + 1][i - 2] -
                          v2[0][2][r - 2][i - 3] + v2[0][2][l + 1][i - 3] -
                          v2[1][2][r - 2][i - 2] + v2[1][2][l + 1][i - 2];
                    if (tp >= 0)
                        cnt[tp]--;
                }
            }
        }
    }
    prt(ans), putchar('\n');
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 36 ms 20252 KB Output is correct
3 Correct 39 ms 20124 KB Output is correct
4 Correct 37 ms 20364 KB Output is correct
5 Correct 36 ms 20620 KB Output is correct
6 Correct 50 ms 20368 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 2 ms 860 KB Output is correct
8 Correct 2 ms 856 KB Output is correct
9 Correct 7 ms 1012 KB Output is correct
10 Correct 3 ms 1116 KB Output is correct
11 Correct 2 ms 860 KB Output is correct
12 Correct 2 ms 860 KB Output is correct
13 Correct 5 ms 1148 KB Output is correct
14 Correct 4 ms 860 KB Output is correct
15 Correct 6 ms 1116 KB Output is correct
16 Correct 7 ms 1116 KB Output is correct

Subtask #4
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 2 ms 860 KB Output is correct
8 Correct 2 ms 856 KB Output is correct
9 Correct 7 ms 1012 KB Output is correct
10 Correct 3 ms 1116 KB Output is correct
11 Correct 2 ms 860 KB Output is correct
12 Correct 2 ms 860 KB Output is correct
13 Correct 5 ms 1148 KB Output is correct
14 Correct 4 ms 860 KB Output is correct
15 Correct 6 ms 1116 KB Output is correct
16 Correct 7 ms 1116 KB Output is correct
17 Correct 5 ms 3164 KB Output is correct
18 Correct 34 ms 3456 KB Output is correct
19 Correct 24 ms 3108 KB Output is correct
20 Correct 27 ms 3416 KB Output is correct
21 Correct 32 ms 3420 KB Output is correct
22 Correct 25 ms 3420 KB Output is correct
23 Correct 26 ms 3416 KB Output is correct
24 Correct 22 ms 3168 KB Output is correct
25 Correct 33 ms 3420 KB Output is correct
26 Correct 35 ms 3416 KB Output is correct
27 Correct 37 ms 3396 KB Output is correct
28 Correct 36 ms 3420 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 2 ms 860 KB Output is correct
8 Correct 2 ms 856 KB Output is correct
9 Correct 7 ms 1012 KB Output is correct
10 Correct 3 ms 1116 KB Output is correct
11 Correct 2 ms 860 KB Output is correct
12 Correct 2 ms 860 KB Output is correct
13 Correct 5 ms 1148 KB Output is correct
14 Correct 4 ms 860 KB Output is correct
15 Correct 6 ms 1116 KB Output is correct
16 Correct 7 ms 1116 KB Output is correct
17 Correct 5 ms 3164 KB Output is correct
18 Correct 34 ms 3456 KB Output is correct
19 Correct 24 ms 3108 KB Output is correct
20 Correct 27 ms 3416 KB Output is correct
21 Correct 32 ms 3420 KB Output is correct
22 Correct 25 ms 3420 KB Output is correct
23 Correct 26 ms 3416 KB Output is correct
24 Correct 22 ms 3168 KB Output is correct
25 Correct 33 ms 3420 KB Output is correct
26 Correct 35 ms 3416 KB Output is correct
27 Correct 37 ms 3396 KB Output is correct
28 Correct 36 ms 3420 KB Output is correct
29 Correct 35 ms 20352 KB Output is correct
30 Correct 230 ms 20528 KB Output is correct
31 Correct 474 ms 20996 KB Output is correct
32 Correct 45 ms 20304 KB Output is correct
33 Correct 417 ms 21100 KB Output is correct
34 Correct 418 ms 21332 KB Output is correct
35 Correct 179 ms 13880 KB Output is correct
36 Correct 264 ms 20420 KB Output is correct
37 Correct 444 ms 20840 KB Output is correct
38 Correct 440 ms 20812 KB Output is correct
39 Correct 430 ms 20844 KB Output is correct
40 Correct 432 ms 21072 KB Output is correct
41 Correct 454 ms 20844 KB Output is correct
42 Correct 492 ms 20640 KB Output is correct
43 Correct 442 ms 20848 KB Output is correct
44 Correct 454 ms 20848 KB Output is correct