oj.uz

Submission #894033

# Submission time Handle Problem Language Result Execution time Memory
894033 2023-12-27T20:32:58 Z raphaelp The Kingdom of JOIOI (JOI17_joioi) C++14
100 / 100
 1403 ms 149328 KB 
#include <bits/stdc++.h>
using namespace std;
int main()
{
    int N, M;
    cin >> N >> M;
    int high = 0, low = 1000000000;
    vector<vector<int>> Tab(N, vector<int>(M));
    for (int i = 0; i < N; i++)
    {
        for (int j = 0; j < M; j++)
        {
            cin >> Tab[i][j];
            high = max(high, Tab[i][j]);
            low = min(low, Tab[i][j]);
        }
    }
    vector<vector<int>> colmin(N, vector<int>(M)), colmax(N, vector<int>(M)), rowminlr(N, vector<int>(M)), rowminrl(N, vector<int>(M)), rowmaxlr(N, vector<int>(M)), rowmaxrl(N, vector<int>(M));
    for (int i = 0; i < M; i++)
    {
        colmin[N - 1][i] = Tab[N - 1][i];
        colmax[N - 1][i] = Tab[N - 1][i];
    }
    for (int i = N - 2; i >= 0; i--)
    {
        for (int j = 0; j < M; j++)
        {
            colmin[i][j] = min(colmin[i + 1][j], Tab[i][j]);
            colmax[i][j] = max(colmax[i + 1][j], Tab[i][j]);
        }
    }
    for (int i = 0; i < N; i++)
    {
        rowminlr[i][0] = Tab[i][0];
        rowmaxlr[i][0] = Tab[i][0];
        rowminrl[i][M - 1] = Tab[i][M - 1];
        rowmaxrl[i][M - 1] = Tab[i][M - 1];
    }
    for (int j = 1; j < M; j++)
    {
        for (int i = 0; i < N; i++)
        {
            rowminlr[i][j] = min(rowminlr[i][j - 1], Tab[i][j]);
            rowmaxlr[i][j] = max(rowmaxlr[i][j - 1], Tab[i][j]);
        }
    }
    for (int j = M - 2; j >= 0; j--)
    {
        for (int i = 0; i < N; i++)
        {
            rowminrl[i][j] = min(rowminrl[i][j + 1], Tab[i][j]);
            rowmaxrl[i][j] = max(rowmaxrl[i][j + 1], Tab[i][j]);
        }
    }
    int best = 1234567890;
    int maxx = 0, minn = 1000000000;
    int x = 0, y = M - 1;
    while (x < N && y >= 0)
    {
        int a = min(minn, rowminlr[x][y]);
        int b = max(maxx, colmax[x][y]);
        if (high - a > b - low)
        {
            maxx = b;
            y--;
        }
        else
        {
            minn = a;
            x++;
        }
    }
    best = min(best, max(high - minn, maxx - low));
    maxx = 0, minn = 1000000000;
    x = 0, y = M - 1;
    while (x < N && y >= 0)
    {
        int a = min(minn, colmin[x][y]);
        int b = max(maxx, rowmaxlr[x][y]);
        if (high - a > b - low)
        {
            maxx = b;
            x++;
        }
        else
        {
            minn = a;
            y--;
        }
    }
    best = min(best, max(high - minn, maxx - low));
    maxx = 0, minn = 1000000000;
    x = 0, y = 0;
    while (x < N && y < M)
    {
        int a = min(minn, rowminrl[x][y]);
        int b = max(maxx, colmax[x][y]);
        if (high - a > b - low)
        {
            maxx = b;
            y++;
        }
        else
        {
            minn = a;
            x++;
        }
    }
    best = min(best, max(high - minn, maxx - low));
    maxx = 0, minn = 1000000000;
    x = 0, y = 0;
    while (x < N && y < M)
    {
        int a = min(minn, colmin[x][y]);
        int b = max(maxx, rowmaxrl[x][y]);
        if (high - a > b - low)
        {
            maxx = b;
            x++;
        }
        else
        {
            minn = a;
            y++;
        }
    }
    best = min(best, max(high - minn, maxx - low));
    cout << best;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 6 ms 1372 KB Output is correct
17 Correct 10 ms 1604 KB Output is correct
18 Correct 9 ms 1628 KB Output is correct
19 Correct 10 ms 1628 KB Output is correct
20 Correct 8 ms 1616 KB Output is correct
21 Correct 15 ms 1880 KB Output is correct
22 Correct 12 ms 1884 KB Output is correct
23 Correct 12 ms 1864 KB Output is correct
24 Correct 11 ms 1624 KB Output is correct
25 Correct 12 ms 1884 KB Output is correct
26 Correct 15 ms 1884 KB Output is correct
27 Correct 12 ms 1860 KB Output is correct
28 Correct 12 ms 1880 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 6 ms 1372 KB Output is correct
17 Correct 10 ms 1604 KB Output is correct
18 Correct 9 ms 1628 KB Output is correct
19 Correct 10 ms 1628 KB Output is correct
20 Correct 8 ms 1616 KB Output is correct
21 Correct 15 ms 1880 KB Output is correct
22 Correct 12 ms 1884 KB Output is correct
23 Correct 12 ms 1864 KB Output is correct
24 Correct 11 ms 1624 KB Output is correct
25 Correct 12 ms 1884 KB Output is correct
26 Correct 15 ms 1884 KB Output is correct
27 Correct 12 ms 1860 KB Output is correct
28 Correct 12 ms 1880 KB Output is correct
29 Correct 944 ms 127324 KB Output is correct
30 Correct 991 ms 123932 KB Output is correct
31 Correct 1008 ms 133392 KB Output is correct
32 Correct 1004 ms 133712 KB Output is correct
33 Correct 879 ms 116308 KB Output is correct
34 Correct 1062 ms 133820 KB Output is correct
35 Correct 1384 ms 149288 KB Output is correct
36 Correct 1157 ms 130320 KB Output is correct
37 Correct 1403 ms 149328 KB Output is correct